Measure Theory
Let (fn) be a sequence in L(X, F, μ) that converges pointwaise to the zero constant function. If for all n ∈ N we have that fn ≥ 0 and ∫max{f1,...,fn} ≤ M < ∞, prove that lim∫fndμ=0.

Answers

Answer 1

Answer:

Step-by-step explanation:

Since (fn) converges pointwise to the zero function, we have that for every x ∈ X,

limn→∞ fn(x) = 0.

Now, for each n ∈ N, we have fn ≥ 0 and thus, max{f1, ..., fn} = fn.

Therefore,

∫max{f1, ..., fn} dμ = ∫fn dμ.

Since ∫max{f1, ..., fn} dμ ≤ M < ∞, we have that ∫fn dμ ≤ M for all n ∈ N.

We can use the dominated convergence theorem to show that

limn→∞ ∫fn dμ = ∫limn→∞ fn dμ = 0.

To apply the dominated convergence theorem, we need to find a dominating function that is integrable and dominates fn for all n. Since fn ≥ 0 for all n, we can take g = max{f1, f2, ...} as our dominating function.

Then, we have that g ≥ fn for all n, and

∫g dμ = ∫max{f1, f2, ...} dμ ≤ M < ∞.

Therefore, g is integrable and dominates fn for all n, and we can apply the dominated convergence theorem to conclude that

limn→∞ ∫fn dμ = ∫limn→∞ fn dμ = 0.


Related Questions

PLS HELP !!!











have a good day B)

PLS HELP !!!have a good day B)

Answers

Answer:

it is a wild flamenco

Step-by-step explanation:

For her father's birthday, Jeanna wishes to bake 34 pans of
baked macaroni. However, her small oven can bake one pan
only for 1 hours. How many hours will it take Jeanna to bake 3
pans of baked macaroni?
2
11​

Answers

It will take 3 hours to bake 3 pans of baked macaroni if the oven can only bake one pan of baked macaroni for 1 hour.

If Jeanna's oven can only bake one pan of baked macaroni for 1 hour, then it will take 3 hours to bake 3 pans of baked macaroni. This is because the time it takes to bake the pans is directly proportional to the number of pans being baked. Therefore, if it takes 1 hour to bake 1 pan, it will take 3 hours to bake 3 pans. So, the answer is 3 hours.

It is important to note that the number of pans Jeanna wishes to bake, which is 34 pans, is irrelevant to the question. The question only asks for the time it will take to bake 3 pans of baked macaroni, so the number of pans Jeanna wishes to bake does not affect the answer.

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What is the root number of 121?

Answers

Answer:

11 is the root of 121 ........

336,765=3,14×0.55×(l+0.55) please help​

Answers

Answer:

l = 194999.45

Step-by-step explanation:

I'm going to assume that you meant 3.14 by 3,14.

336,765 = 3.14 × 0.55 × (l + 0.55)

336,765 ÷ (3.14 × 0.55) = l + 0.55

(336,765 ÷ (3.14 × 0.55)) - 0.55 = l

l = 194999.45

What is the gradient of the graph shown​

What is the gradient of the graph shown

Answers

Answer:

Use the formula change in y divided by change in x to get your answer

If you go out to
eat with 3 friends and your meal was $72.50, there is 6.75% sales tax
and you should tip the waiter 15%. How much should each person pay?

Answers

Answer:

22.25per person

Step-by-step explanation:

72.50*0.0675=4.89

72.50+4.89=77.39

77.39*.15=11.61=89.00

89.00/4=22.25 per person

Heights, in inches, for the 200 graduating seniors from Washington High School are summarized in the frequency table below.
Which of the following statements about the median height is true?
answer choices
It is greater than or equal to 72 inches but less than 78 inches.
It is greater than or equal to 66 inches but less than 72 inches.
It is less than 60 inches.
It is greater than or equal to 60 inches but less than 66 inches.

Answers

Option (D), the last option is the correct statement, If heights in inches of 200 graduating seniors were summarized in the frequency table;

The median height is greater than or equal to 60 inches but less than 66 inches.

The median is the number value that separates the lower and upper values to halves. The median height is determined by arranging all the given heights in order either from the smallest to highest or from highest to smallest without skipping any measurement of the heights.

After arranging all the heights in order, the median height is usually at the middle.

The reason as to why the median height is greater than or equal to 60 inches but less than 66 inches is because the middle height should not be same as the largest height of 66 inches. It is possible to have multiple 60 inch heights from the 200 seniors. It is also possible to have multiple 66 inch of heights from the 200 seniors.

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find the slope of the line through each pair of points

1. (-9,-20)(6,-15)

2. (13,-2)(6,15)

3. (8,6)(-2,-6)

4. (-19,19)(17,7)


Quick i will mark brainliest i need anwser by tommorow before 9am or a fail

Answers

Answer:

1. m = 1/3

2. m = -2.43

3. m = 1.2

4. m = -1/3

what does the equation x 2 y 2 = 4 correspond to if a) x, y are the only variables being considered, b) x, y, z are the only variables being considered.

Answers

The equation x² y² = 4 corresponds to a hyperbola when only considering x and y as variables. When considering x, y, and z as variables, the equation corresponds to a two-sheeted hyperboloid.

a) When only x and y are the variables being considered, the equation x² y² = 4 corresponds to a circle in the xy-plane. The circle has a center at the origin (0,0) and a radius of 2.

b) If x, y, and z are the only variables being considered, the equation x² y² = 4 still represents a circle in the xy-plane, but it becomes a cylinder along the z-axis. This cylinder has a center on the z-axis and a radius of 2, extending infinitely along the z-axis.

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What is the multiplicative inverse of -9/14?

Answers

Answer:

-1 5/9

Step-by-step explanation:

The multiplicative inverse is another fancy way of saying reciprocal.

You can think of the reciprocal as the flipped version of the fraction. For example, the reciprocal of 3/4 is 4/3, since we just flip the numbers.

The reciprocal of -9/14 would be -14/9, or -1 and 5/9.

= -1 5/9

Hope this helps, please mark brainliest if possible. :D

Can you pls help me it’s urgent?

Can you pls help me its urgent?

Answers

Answer:

a) BC = 9.75m

b) length of the fence = 33.5m

Step-by-step explanation:

a) Theorem's pythagoras

BD^2 = BC^2 + CD^2

12^2 = BC^2 + 7^2

BC = √(12^2+7^2)

BC = √95

BC = 9.75

Answer - BC = 9.75m

b) Length of the fence;-

AB+BC+CD+AD

7+9.75+7+9.75

= 33.5m

Answer - Length of the fence = 33.5m

What is the value of the expression 2344+835

Answers

The expression 2344 + 835 has a value of 3179 when evaluated because it is the result of adding the numbers

Evaluating the expression 2344+835

From the question, we have the following parameters that can be used in our computation:

2344 + 835

The above statement is a summation expression that adds the values of 2344 and 835

Also, there is a need to check if there are like terms in the expression or not

This is because we are adding the terms

So, we have

2344 + 835 = 3179

This means that the value of the expression is 3179 i.e the result of adding the numbers

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1. What time will it be at the following places if it is 3am at 15°E?
a. 45 E
b. 60°E
c. 90°E
d. 105.E
e. 124°E​
please show working

Answers

A- 6am
B- 7am
C- 9 am
D- 10am
E- 11:40 am
I don’t know how to show work for this I just have a really good feeling this is correct‍♀️

Full working out for this question please.

Full working out for this question please.

Answers

Answer:

B. 3.2

Step-by-step explanation:

5 companies have 0 computers.

10 companies have 1 computer.

10 companies have 2 computers.

30 companies have 3 computers.

25 companies have 4 computers.

20 companies have 5 computers.

To find mean:

0 x 5 = 0

10 x 1 = 10

10 x 2 = 20

30 x 3 = 90

25 x 4 = 100

20 x 5 = 100

100 + 100 + 90 + 20 + 10 + 0 = 320

20 + 25 + 30 + 10 + 10 + 5 = 100

100 companies were surveyed.

100 companies use 320 computers in total.

320 / 100 = 3.2

Some nations require their students to pass an exam before earning their primary school degrees or diplomas. A certain nation gives students an exam whose scores are normally distributed with a mean of 414141 points and a standard deviation of 999 points. Suppose we select 222 of these testers at random, and define the random variable ddd as the difference between their scores. We can assume that their scores are independent. Find the probability that their scores differ by more than 151515 points.

Answers

The required probability that their scores differ by more than 15 points is 0.99807.

As stated in the question, a specific country administers an exam to students with scores that are regularly distributed with a mean of 41 points and a standard deviation of 9 points. Assume we randomly select two of these testers and define the random variable d as the difference in their scores.

What is probability?

Probability can be defined as the ratio of favorable outcomes to the total number of events.

Here,
Z = x - μ / σ
Z = 15 - 41 / 9
Z = -2.88
Now,
P(x > 15) = P (z > -2.88)
            = 0.99807

Thus, the needed chance is 0.99807 and their scores differ by more than 15 points.

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Determine the intercepts of the line.
x-intercept: (_,_)
y-intercept: (_,_)

Determine the intercepts of the line.x-intercept: (_,_)y-intercept: (_,_)

Answers

Answer:

x int(-7.5, 0)

y int (0, 5.5)

Step-by-step explanation:

Answer:

X? im not sure about it...

a system consists of 5 identical components. in order for the system to perform as intended, all of the components must perform. each has the same probability of performance. if the system is to have a 0.91 probability of performing, what is the minimum probability of performing needed by each of the individual components?

Answers

The minimum probability of performance needed by each of the individual components is approximately 0.976.

Since the system consists of 5 components that must all perform for the system to work, the probability of the system performing can be expressed as the product of the probability of each component performing:

P(system performs) = P(component 1 performs) x P(component 2 performs) x ... x P(component 5 performs)

Since all components are identical, we can express the probability of each component performing as x, and the probability of the system performing as:

P(system performs) = \(x^5\)

We want the probability of the system performing to be at least 0.91. Therefore, we can set up the following equation:

\(x^5\) ≥ 0.91

Taking the fifth root of both sides gives us:

x ≥ \(0.91^{(1/5)}\)x ≥ 0.9759

Therefore, the minimum probability of performance needed by each of the individual components is approximately 0.976.

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Which of the following fractions is equivalent to 10/12 ?\(\frac{10}{12}\)

A) 40/48

B) 20/30

C) 4/5

D) 12/14
(NO LINKS PLEASE)

Answers

What is the inverse of the statement?

A number that has exactly two distinct factors is prime.

If a number has exactly two distinct factors, then the number is prime.
If a number does not have exactly two distinct factors, then the number is not prime.
If a number is not prime, then the number does not have exactly two distinct factors.
If a number is prime, then the number has exactly two distinct fac

Answers

The inverse of the statement is "If a number does not have exactly two distinct factors, then the number is not prime." Thus Option 2 is the answer.

   When a conditional statement is reversed, the hypothesis and conclusion are both negated. The hypothesis in the original statement is "a number with exactly two distinct factors," while the conclusion is "is prime."

  To make the inverse, we negate both sections. "A number does not have exactly two distinct factors" is the antonym of "A number that has exactly two distinct factors." "Is not prime" is the opposite of "is prime."

    As a result, the inverse statement is "If a number does not have exactly two distinct factors, then the number is not prime."

     It's crucial to remember that a statement's inverse could or might not be accurate. In this instance, the inverse is true since the definition of a prime number is incompatible with the fact that a number has more than two components if it has more than exactly two different factors.

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Based on the problem statement, state the height, radius, and Pi to substitute into the volume formula to calculate the volume of the cone. What is the approximate volume of a cone with a height of 10 inches and a radius of 3 inches?

Radius r=
in
Height h=
in
Pi=


Need this by 5:00 PM (CST) THANK YOU ALL!

Answers

From the given information provided, the approximate volume of the cone is 94.24777 cubic inches.

The volume of a cone can be calculated using the formula V = (1/3) × π × r² × h, where "r" is the radius of the base of the cone, "h" is the height of the cone, and "π" is the mathematical constant approximately equal to 3.14159.

Radius r= 3 inches

Height h= 10 inches

π = 3.14159

Using the formula for the volume of a cone, V = (1/3) × π × r² × h, we can substitute the given values to calculate the volume of the cone:

V = (1/3) × 3.14159 × 3² × 10

V ≈ 94.24777 cubic inches

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What is the segment 7x+5=8

Answers

Step-by-step explanation:

7x - 5 = 8

7x = 8 + 5

7x = 13 (divide both sides by 7 to get x)

7x/7 = 13/7

x = 1.85714285714

please help, will give brainiest IF correct !! 40 points

please help, will give brainiest IF correct !! 40 points

Answers

Answer:

nine over eleven because its ez

Step-by-step explanation:

9/11 is the correct answer. hope this helped :)))

Need help with this!

Need help with this!

Answers

Answer:

488

Step-by-step explanation:

Calculate 20% of their take-home pay

3600 * 0.20 = 720

They already pay 122 and 110 per month

720 - (122 + 110)

720 - 232

488

So the largest monthly car payment they can afford is 488

I NEED HELP WITH THIS TODAYYY ( I am dumb soo...)

I NEED HELP WITH THIS TODAYYY ( I am dumb soo...)

Answers

Answer:

B

Step-by-step explanation:

When numbers are negative, the number that has the bigger absolute value(meaning the actual number without the negative sign) is smaller because it is farther down from 0. So, -19% is less than -1.75%.

Negative numbers are always less than positive ones, so now, we know that the other two values are greater than the negative ones.

Now, if you convert 9/11 to decimals, you will get 0.818181818181818181...

Which is 0.008181818181... greater than 0.81. So, the final answer is...

-19% < -1.75% < 0.81 < 9/11

Ascending means increasing.

As you can see, each value in the expression -19% < -1.75% < 0.81 < 9/11 is greater than the value before it, so therefore...

B is the answer!

PLZ!! HELP!!
Linear Functions!!

PLZ!! HELP!!Linear Functions!!

Answers

Answer:

I think the answer is liner

how do I find the inverse function of

Answers

To find the inverse function of F(x) = 2x - 3, we replace F(x) with y, swap the positions of x and y, and solve for y. The inverse function is f⁻¹(x) = (x+3)/2.

To find the inverse function of F(x) = 2x - 3, follow these steps

Replace F(x) with y. The equation now becomes y = 2x - 3.

Switch the positions of x and y, so the equation becomes x = 2y - 3.

Solve for y in terms of x. Add 3 to both sides: x + 3 = 2y.

Divide both sides by 2 (x + 3)/2 = y.

Replace y with the notation for the inverse function, f⁻¹(x): f⁻¹(x) = (x + 3)/2.

So, the inverse function of F(x) = 2x - 3 is f⁻¹(x) = (x + 3)/2.

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--The given question is incomplete, the complete question is given

" How do I find the inverse function of F(x) = 2x - 3"--

it is meaningful to compute the probability that a continuous random variable multiple select question. is exactly equal to a number. is greater than or equal to a number. is less than or equal to a number. is between two numbers.

Answers

It is meaningful to compute the probability that a continuous random variable is greater than or equal to a number, less than or equal to a number, or between two numbers.

What is indetail explaination of the answer?

In probability theory, a continuous random variable is a variable that can take on any value within a certain range or interval.

As a result, the probability that a continuous random variable takes on a specific value is zero, since there are infinitely many possible values the variable can take on.

Therefore, it is not meaningful to compute the probability that a continuous random variable is exactly equal to a number.

However, it is meaningful to compute the probability that a continuous random variable is greater than or equal to a number, less than or equal to a number, or between two numbers.

These probabilities can be calculated using the cumulative distribution function (CDF) of the random variable. The CDF gives the probability that a random variable takes on a value less than or equal to a certain value, which can be used to compute probabilities for ranges of values.

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prove the identity ((secy-tany) (secy+ tan y))/secy= COS U

Answers

Answer:

boring

Step-by-step explanation:

To prove the given identity, we'll start with the left side and simplify it step by step until we obtain the right side of the equation:

We have:

((sec y - tan y)(sec y + tan y)) / sec y

Using the difference of squares, we can rewrite the numerator:

((sec y)^2 - (tan y)^2) / sec y

Recall the trigonometric identity: (sec x)^2 - (tan x)^2 = 1

Substituting this identity into our expression:

(1) / sec y

Using the reciprocal identity: sec x = 1 / cos x

We can rewrite the expression as:

1 / (1 / cos y)

Simplifying further by multiplying by the reciprocal:

cos y / 1

Which simplifies to:

cos y

Therefore, we have shown that the left side of the identity ((sec y - tan y)(sec y + tan y)) / sec y simplifies to cos y, which is the same as the right side of the equation.

What is the solution for the system of equations shown in the graph?WILL GIVE BRAINLY IF ANSWER

What is the solution for the system of equations shown in the graph?WILL GIVE BRAINLY IF ANSWER

Answers

Answer:

(2,4)

Step-by-step explanation:

thats the point where both lines meet

If f(x)= x² + 3x –10, then over which of the following intervals is f(x) <0?

Answers

Answer:

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation: (−∞,∞)

Set-Builder Notation: {x|x∈R}

f(x) is continuous on (−∞,0).

The function is continuous.

Step-by-step explanation:

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