
Find two whole numbers between which the solution must lie.

Answer to Problem 89E
Explanation of Solution
Given information:
Estimating a Solution without actually solving the equation, find two whole numbers between which the solution of
Calculation:
Consider the given equation,
Let
Root of
Substitute
Substitute
So, by intermediate value theorem the roots must lie between number
Since,
Let,
Root of
Substitute
Substitute
Substitute
So, by intermediate value theorem the roots must lie between number
Since,
Now, to check the answer for first case. take log on both sides,
Hence, intermediate value theorem for first case is correct.
Hence, the solution is,
Chapter 4 Solutions
Precalculus: Mathematics for Calculus - 6th Edition
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