Hello Lakshay
Please check https://www.teachoo.com/2173/584/Ex-3.3--1---Prove-sin2-pi-6---cos2-pi-3---tan2-pi-4---1-2/category/Ex-3.3/
There is a list at the bottom with all the links to other questions of the exercise
Written on July 20, 2019, 3:05 p.m.