Prove that 1 - sin-2 - 1 - sin-22 cos2- - 1 - sin2-1 - sin2-

LHS =(1 + sinθ)^2 + (1 sinθ)^22 cos^2θ #160; #160; #160; #160; =1+sin ^2θ 2sinθ +1+sin ^2θ +2sinθ2(1 sin ^2θ) #160; #160; #160; ...

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Prove that ...

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Prove that $\frac{(1 + sin θ)^{2} + (1 - sin θ)^{2}}{2 {cos}^{2} θ} = (\frac{1 + {sin}^{2} θ}{1 - {sin}^{2} θ})$

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Prove the following trigonometric identities:

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