Practice problem
Simplify: csc2a+1−cot2asec2a−tan2a\frac {\csc^{2}a+1-\cot^{2}a}{\sec^{2}a-\tan^{2}a}sec2a−tan2acsc2a+1−cot2a
111
sinx\sin xsinx
cosx\cos xcosx
tanx\tan xtanx
Type a concept, like “slope” or “photosynthesis”.
