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Question
Prove the following identity :
`(1 - sin^2θ)sec^2θ = 1`
Solution
`(1 - sin^2θ)sec^2θ = 1`
Consider L.H.S = `cos^2θsec^2θ`
= `cos^2θ xx 1/cos^2θ = 1`
= R.H.S
Hence proved.
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