If Cos (Ɵ-α), Cos Ɵ, Cos (Ɵ+α) are in H.P., then prove that Cos2Ɵ = 1+Cosα
If Cos (Ɵ-α), Cos Ɵ, Cos (Ɵ+α) are in H.P., then prove that Cos2Ɵ = 1+Cosα
Get your questions answered by the expert for free
Last Activity: 2 Years ago
Last Activity: 2 Years ago
Last Activity: 2 Years ago
Last Activity: 2 Years ago
Last Activity: 2 Years ago