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What is the simplified value of $cos^2 (90^o - θ) - [\frac{cos(90^o-θ)cosθ}{cotθ}]$? |
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$cos^2 (90^o - θ) - [\frac{cos(90^o-θ)cosθ}{cotθ}]$ { using :- cos (90º - θ)sin = θ } = $sin^2 θ - [\frac{sinθcosθ}{cotθ}]$ = $sin^2 θ - sin^2 θ$ = 0 |
