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

Prove for all real x and y that

|sinx - siny| <= |x-y|

2. Relevant equations

It's a question from the Mean Value Theorem/Rolle's Theorem section.

3. The attempt at a solution

Honestly, I've tried. It looks somewhat similar to the triangle inequality (I think?), but truth be told I can't get anywhere with this.

I'd appreciate if anyone could give me a hand and point me in the proper direction. Thanks!

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# Proof Involving MVT?

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