1.

Prove that: (i) cos245∘−sin215∘=√34 (ii) Sin2(n+1)A−sin2nA=sin(2n+1)AsinA

Answer» Prove that:
(i) cos245sin215=34
(ii) Sin2(n+1)Asin2nA=sin(2n+1)AsinA


Discussion

No Comment Found