Prove that: 5. sin x + sin 3x + sin 5x + sin 7x = 4 cos x cos 2x sin 4x Prove that: 5. sin x + sin 3x + sin 5x + sin 7x = 4 cos x cos 2x sin 4x October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related
