prove that (cosec theta + sin theta) ( cosec theta - sin theta) = cot²theta + cos²theta
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Step-by-step explanation:
consider the identities,
cosec² θ = 1+cot² θ
sin² θ = 1 - cos² θ
(cosec θ+sin θ)(cosec θ-sin θ)
= cosec² θ - sin² θ
= 1+cot² θ - (1 - cos² θ)
= cot² θ + cos² θ
Hence proved
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bhai maine ek question ko 3 baar post kiya profe mein jaa kr koi answer kr do I beg to you. I'm in class 10
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