Let `vec(a)` and `vec(b)` be two nonzero vector. Prove that   `vec(a) bot vec(b) hArr |vec(a)+vec(b)
Channel: Doubtnut
Date: 2020-04-19

Let `vec(a)` and `vec(b)` be two nonzero vector. Prove that   `vec(a) bot vec(b) hArr |vec(a)+vec(b)|=|vec(a)-vec(b)|`.