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# 100 Evaluate the following limits. Check your results by ISBN: 9780321570567 2

## Solution for problem 36RE Chapter 4

Calculus: Early Transcendentals | 1st Edition

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Problem 36RE

100 Evaluate the following limits. Check your results by graphing. lim ln x x?? ?x

Step-by-Step Solution:

Solution Step 1 100 In this problem we have to evaluate the limit lim ln x by using l'Hôpital's Rule when x x needed. l'Hôpital's Rule: Suppose that we have one of the following cases, lim f(x)= or lim f(x)= ± xa g(x) 0 xa g(x) ± Where a can be any real number, infinity or negative infinity. In these cases we have lim f(x)= lim f(x) xa g(x) xa gx) Step 2 ln x00 Let us now evaluate lim x x By the direct substitution of x = we get indeterminate form. So we can apply l’hopital’s rule. 100 d(ln x0) lim ln x = lim dxd x x x dx(x) dx (ln x100) = 100(100x )9 x d 1 dx (x) = 2x d 100 1 99 ln x00 dxln x ) x100100x ) xm x = lix dx(x) = x 2 x 200x 200 200 = x x = x x = = 0 Thus lim ln x00= 0 x x

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##### ISBN: 9780321570567

This full solution covers the following key subjects: check, evaluate, graphing, lim, Limits. This expansive textbook survival guide covers 85 chapters, and 5218 solutions. This textbook survival guide was created for the textbook: Calculus: Early Transcendentals, edition: 1. Calculus: Early Transcendentals was written by and is associated to the ISBN: 9780321570567. Since the solution to 36RE from 4 chapter was answered, more than 276 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 36RE from chapter: 4 was answered by , our top Calculus solution expert on 03/03/17, 03:45PM. The answer to “100 Evaluate the following limits. Check your results by graphing. lim ln x x?? ?x” is broken down into a number of easy to follow steps, and 15 words.

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