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posted by manpreet on Thursday, May 23, 2013 at 7:26pm.
(sinθ+1)/(1-sinθ) =(tanθ+secθ)²
(1+sinθ)/(1-sinθ) = (1+sinθ)/(1-sinθ) * (1+sinθ)/(1+sinθ) = (1+sinθ)^2 / (1-sin^2θ) = (1+2sinθ+sin^2θ)/cos^2θ = sec^2θ + 2secθtanθ + tan^2θ = (secθ+tanθ)^2
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