Practice problem
Simplify: sin2a+cot2a+1csc2a−cos2a+1\frac {\sin^{2}a+\cot^{2}a+1}{\csc^{2}a-\cos^{2}a+1}csc2a−cos2a+1sin2a+cot2a+1
111
cosx\cos xcosx
sinx\sin xsinx
tanx\tan xtanx
Type a concept, like “slope” or “photosynthesis”.
