Prove the following: 18. sin x – sin y / cos x + cos y = tan x-y/2 Prove the following: 18. sin x - sin y / cos x + cos y = tan x-y/2 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related
