   Chapter 2.3, Problem 6PT

Chapter
Section
Textbook Problem

lim x → 2 1 2 − 1 x 2 − x = _____. a) 0 b) 1 4 c) − 1 4 d) does not exist

To determine

The value of limx2121x2x.

Explanation

Result used:

“When substitution of x=a in limxaf(x)g(x) results in 00, it may be that xa is a factor of both f(x) and g(x) and can be cancelled.”

Calculation:

Compute the value of limx2121x2x as follows.

limx2121x2x=limx2x22x2x=lim

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