Question

****Please show me 2 cases for the proof, one is using n=1, another one is n=2,...

****Please show me 2 cases for the proof, one is using n=1, another one is n=2, otherwise, you answer will be thumbs down****Hint: triangle inequality. Don't copy the online answer because the question is a little bit different

use induction prove that for any n real numbers, |x1+...+xn| <= |x1|+...+|xn|.

Case1: show me to use n=1 to prove it, because all the online solutions are using n=2

Case2: show me to use n=2 to prove it as well.

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