Hello Harsh, Please checkhttps://www.teachoo.com/2233/586/Example-29---Prove-cos2-x---cos2-(x---pi-3)---cos2-(x---pi-3)/category/Examples/

Answer of this question
Cos2x+Cos2[x+π/3]+Cos2[x-x/3]= 3/2

Davneet Singh

Hello Harsh,

Please check https://www.teachoo.com/2233/586/Example-29---Prove-cos2-x---cos2-(x---pi-3)---cos2-(x---pi-3)/category/Examples/

Written on Sept. 26, 2017, 11:22 a.m.

Comment