Example 17 Prove that sin 5x – 2sin 3x + sin x / cos 5x – cos x = tan x Example 17 Prove that sin 5x - 2sin 3x + sin x / cos 5x - cos x = tan x October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related