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Prove that (1+sec2theta)(1+sec2^2theta)(...

Prove that `(1+sec2theta)(1+sec2^2theta)(1+sec2^3theta)…..(1+sec2^ntheta)=tan2^ntheta.cottheta`

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PATHFINDER-TRIGONOMETRIC RATIOS AND IDENTITIES-QUESTION BANK
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  3. Prove that (1+sec2theta)(1+sec2^2theta)(1+sec2^3theta)…..(1+sec2^nthet...

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