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Problem

Evaluate the integral. $ \displaystyle \int_2^…

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Problem 8 Medium Difficulty

Evaluate the integral.

$ \displaystyle \int \frac{dt}{t^2 \sqrt{t^2 - 16}} $


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Related Courses

Calculus 2 / BC

Calculus: Early Transcendentals

Chapter 7

Techniques of Integration

Section 3

Trigonometric Substitution

Related Topics

Integration Techniques

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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

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Problem 15
Problem 16
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Problem 22
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Problem 24
Problem 25
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Problem 31
Problem 32
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Problem 35
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Problem 44

Video Transcript

here we have the anti derivative of one over T square times the square root of T squared minus sixteen. Because our denominator is of the form T squared minus a square. Let's go ahead and try. Substitution of the Forum T equals a Sikh and data. So here are Valium. A is for because a square to sixteen. So we have is forcing can't data from which we have The derivative DT is four c can data tan data. Now, before we go on to rewrite in a roll, let's just go ahead and deal with this radical. First we have t squared minus sixteen square root will become sixteen. Seek and squared minus sixteen. We can pull the sixteen outside the radical that becomes a four. We have Sikh and squared minus one. So this becomes four square root Tan square, which is fourth and data. So we have integral D t, which is given over here for sick and data tan data and the denominator. We have this t squared out here in the front. That's a sixteen seek and square data and then we just evaluated the square root. And as for Sandra was God and cancels much as we can. You see these force Cancel. Those tangents will cancel. So we're left with one over sixteen, and then you could cancel out one of these sea cans. So we have one over seek and data using the definition of Sikkim. This is because I data and inside rivet of the coastline is simply sign. So we have signed data over sixteen plus C. Now, this is the point in which we use the the right triangle in orderto rewrite our answer in terms of TV. So let's come back up over here to our tourism. So from this we have seek and data equals t over four. Those trucks are right triangle from this. So let's put they towed over here in the bottom. Right? So we have seeking is high pop news over adjacent. And then we can use put that rent the room to find the remaining side age. Solis, he and make some room. Here we have a squared. Plus four squared is Theis. Where? So H equals square root. Is he squared? Minus sixteen. Now, using this fact, now that we have all three sides of the triangle, we could find sign of data. So sign of data is H over tea. So we have square of T squared minus sixteen over tea. Don't forget about the sixteen over here. Someone's put a sixteen t plus C, and that's our answer.

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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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