Asked by John

Simplify:[(cscx-cotx)(cscx+cotx)]/cscx

Answers

Answered by Reiny
[(cscx-cotx)(cscx+cotx)]/cscx

expand

= (csc^2 x - cot^2 x)/csc x

= (1 + cot^2 x - cot^2 x)/csc x
= 1/csc x
= sin x
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