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Chapter 10: Q. 165 (page 1034)

Evaluate Logarithmic Functions In the following exercises, find the value of xin each logarithmic equation.

log1981=x

Short Answer

Expert verified

The value of expression isx=-2

Step by step solution

01

Step 1. Given

An expression is given as log1981=x

02

Step 2. Calculation

Change the equation into exponential form as,

x=ay81=19x

Simplify,

81=(9)-x92=(9)-x2=-xx=-2

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