Prove that (1+sintheta)2+(1-sintheta)2/cos2theta . . .

Question : Prove that (1+sinθ)2+(1-sinθ)2/cos2θ = 2[(1+sin2θ)/(1-sin2θ)]

Doubt by Jaskirat

Solution : 

[∵ (a+b)²=a²+b²+2ab]

[∵ cos²θ=1-sin²θ]

= RHS

LHS = RHS

Hence Proved.