Question :

Prove that Sin²60 + cos²60- tan² 60 = - 2
Submitted on 23/08/2024
Answered by Vandana Rana

Answer :

Sin260 + cos²60- tan2 60 = - 2
LHS =Sin260 + cos²60- tan2 60
=1-(root 3)² (using sin2A + cos2 A = 1 )
=1 - 3
= -2
=RHS