Question

(tan+cot)^2 = sec^2 + csc^2 (working from one side only to get the other side)

Answer 1

is it sec^2+csc^2 or sec^2*csc^2?

Answer 2

sec^2+csc^2

Answer 3

(x+1/x)^2=x^2+2+1/x^2
so here tan^2+1+cot^2+1=sec^2+csc^2