(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I solved the problem and it matches the answer at the end of the book.

Please explain why am I right? Why these two answers are correct?

THank you

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Please explain my answer in Proof Inequalities

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