Concept explainers
To Find: The indirect reasoning to find at least one of the DVD Isaac purchased was over
Answer to Problem 25SGR
The inequality
Explanation of Solution
Given:
The amount spent on the DVD is
Calculation:
Consider the indirect proof that one should temporarily assume that the conclusion is false.
Consider that for each DVD the cost is no more than $25 and consider the equation is,
The objective is to prove that
Then for the indirect proof assume that
Thus, the inequality
Thus, the assumption is false and the original conclusion is true.
Chapter 5 Solutions
Geometry, Student Edition
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