Chapter 6, Problem 6RE

### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919

Chapter
Section

### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919
Textbook Problem
1 views

# Integration by Parts In Exercises 1–8, use integration by parts to find the indefinite integral. ∫ x 2 x + 7 d x

To determine

To calculate: The infinite integral of x2x+7dx by use of the method of integration by parts.

Explanation

Given Information:

The provided integral is x2x+7dx.

Formula used:

The method of integration by parts:

If v and u are two differentiable function of x.

Then,

udv=uvvdu

Steps to solve the integral problems:

Step1: At first find the most complicated portion of the integrand and try to letter it as dv so that it can fit a fundamental integration rule. Then, the remaining factor or factors of the integrand will be u.

Step2: First find the factor whose derivative is simple and consider it as u and then the remaining factor or factors of the integrand will be dv and dv should always include the term dx of the original integrand.

Calculation:

Recall the provided integral.

x2x+7dx

Observe from the above integrand that the simplest portion of the integrand is x.

So, consider, u=x and the remaining factors as dv=12x+7dx.

Therefore,

du=dx

And,

dv=12x+7dx

So, integrate above expression as,

dv=12x+7dxv=14(2x+7)1/2

Apply the integration by parts method

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