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प्रश्न
Prove the following identity :
`(1 - cos^2θ)sec^2θ = tan^2θ`
उत्तर
`(1 - cos^2θ)sec^2θ = tan^2θ`
Consider L.H.S = `sin^2θ1/cos^2θ`
= `tan^2θ` = RHS
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