Question
Simplify:[(cscx-cotx)(cscx+cotx)]/cscx
Answers
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
expand
= (csc^2 x - cot^2 x)/csc x
= (1 + cot^2 x - cot^2 x)/csc x
= 1/csc x
= sin x