Example 29 Prove that cos^2 x + cos^2 (x + π/3) + cos^2 ( x – π/3) = 3/2 Example 29 Prove that cos^2 x + cos^2 (x + π/3) + cos^2 ( x - π/3) = 3/2 October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related
