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Problem

Find the values of $ p $ for which the integral c…

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Problem 58 Hard Difficulty

Find the values of $ p $ for which the integral converges and evaluate the integral for those values of $ p $.

$ \displaystyle \int_e^\infty \frac{1}{x (\ln x)^p}\ dx $


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WZ

Wen Zheng

Related Courses

Calculus 2 / BC

Calculus: Early Transcendentals

Chapter 7

Techniques of Integration

Section 8

Improper Integrals

Related Topics

Integration Techniques

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Video Thumbnail

01:53

Integration Techniques - Intro

In mathematics, integration is one of the two main operations in calculus, with its inverse, differentiation, being the other. Given a function of a real variable, an antiderivative, integral, or integrand is the function's derivative, with respect to the variable of interest. The integrals of a function are the components of its antiderivative. The definite integral of a function from a to b is the area of the region in the xy-plane that lies between the graph of the function and the x-axis, above the x-axis, or below the x-axis. The indefinite integral of a function is an antiderivative of the function, and can be used to find the original function when given the derivative. The definite integral of a function is a single-valued function on a given interval. It can be computed by evaluating the definite integral of a function at every x in the domain of the function, then adding the results together.

Video Thumbnail

27:53

Basic Techniques

In mathematics, a technique is a method or formula for solving a problem. Techniques are often used in mathematics, physics, economics, and computer science.

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Watch More Solved Questions in Chapter 7

Problem 1
Problem 2
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Problem 4
Problem 5
Problem 6
Problem 7
Problem 8
Problem 9
Problem 10
Problem 11
Problem 12
Problem 13
Problem 14
Problem 15
Problem 16
Problem 17
Problem 18
Problem 19
Problem 20
Problem 21
Problem 22
Problem 23
Problem 24
Problem 25
Problem 26
Problem 27
Problem 28
Problem 29
Problem 30
Problem 31
Problem 32
Problem 33
Problem 34
Problem 35
Problem 36
Problem 37
Problem 38
Problem 39
Problem 40
Problem 41
Problem 42
Problem 43
Problem 44
Problem 45
Problem 46
Problem 47
Problem 48
Problem 49
Problem 50
Problem 51
Problem 52
Problem 53
Problem 54
Problem 55
Problem 56
Problem 57
Problem 58
Problem 59
Problem 60
Problem 61
Problem 62
Problem 63
Problem 64
Problem 65
Problem 66
Problem 67
Problem 68
Problem 69
Problem 70
Problem 71
Problem 72
Problem 73
Problem 74
Problem 75
Problem 76
Problem 77
Problem 78
Problem 79
Problem 80
Problem 81
Problem 82

Video Transcript

Hello. Welcome to this lesson. And this lesson. You're looking for the value of B for which the whole integral converges. So list left, learn x it cost to you So that do you will be caught one of our x dx. And this implies that X do you is a call to the X. So if if Lennox go to you, then we have you. It costs too. 11 XC court e and also you it cost to infinity one x sick or to infinity So means that the whole of the limits we change from e 21 them phones if they will, may not infinity. So that is one over. The whole of the DX is replaced by xD. You so you have excellent place off Len X. Who put you there? Yeah. Okay. So, like, this can cross out that. Wow. Okay, right. So wow. Yeah. Uh huh. By integration. Oh, to infinity. New negative B. Oh, right. Do you village point? So let is equal to negative p last one. Yeah. Wow. Yes. To sell a limit. So a limit than you. Mhm. Okay. Okay. Yeah, And that is from one to t. No So the fourth thing Now we comes. Let's put one in the one and t in there. So the limit, he approaches infinity. Oh, see? Okay. Yeah, of T negative people. Last one book. Okay, then. Minus what? One here. Then this becomes negative people. Last one. Okay, so there is a limit T purchase Infinity. Yeah. So the negative comes down so that I can have p minus one looking in there? Yeah. So here, uh, if he is greater than one, if p is better than one, okay, It means that the whole thing here would be a denominator to. And if a denominator is better than zero means that it approaches zero, a denominator is greater than zero. The whole of their, the whole of the fraction approaches there. Okay, so here we can have zero the whole of this with up put zero. Okay, then this is both one of, uh, t minus one king when p is greater than one. All right, so if P is positive, then it would give room for the whole of this to approach there. All right, so this is the value of the p that makes the whole thing converge. Okay, so thanks your time. This is the end of the

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Anna Marie Vagnozzi

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Video Thumbnail

01:53

Integration Techniques - Intro

In mathematics, integration is one of the two main operations in calculus, with its inverse, differentiation, being the other. Given a function of a real variable, an antiderivative, integral, or integrand is the function's derivative, with respect to the variable of interest. The integrals of a function are the components of its antiderivative. The definite integral of a function from a to b is the area of the region in the xy-plane that lies between the graph of the function and the x-axis, above the x-axis, or below the x-axis. The indefinite integral of a function is an antiderivative of the function, and can be used to find the original function when given the derivative. The definite integral of a function is a single-valued function on a given interval. It can be computed by evaluating the definite integral of a function at every x in the domain of the function, then adding the results together.

Video Thumbnail

27:53

Basic Techniques

In mathematics, a technique is a method or formula for solving a problem. Techniques are often used in mathematics, physics, economics, and computer science.

Join Course
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