Prove the attached question
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sin^2 thita + sec^2 thita +cos^2 thita + cosec^2 thita
=sin^2thita +cos^2thita +sec^2thita + cosec ^2thita
=1 +sec^2thita +cosec^2thita..
(sin^2thita +cos^2thita =1..)
=(1+sec + cosec)^2...
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hope this helps you...
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