I don't know how to simplify the following identity (the square root confuses me): cosec (t) * sqrt(sec^2 (t) - 1) Any help would be greatly appreciated! Thanks!
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Originally Posted by s3a I don't know how to simplify the following identity (the square root confuses me): cosec (t) * sqrt(sec^2 (t) - 1) Any help would be greatly appreciated! Thanks! Hint: $\displaystyle \tan^2t+1=\sec^2t$
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