Question

cot^2 x-csc^2 x=-1 true or false

Answer 1

\[\cot ^2(x)-\csc ^2(x) = \frac{\cos^2(x)}{\sin^2(x)} - \frac{1}{\sin^2(x)} = \]

Answer 2

If \[\sin^2(x) + \cos^2(x) = 1\]what does \(\cos^2(x)-1=\)

Answer 3

i did that already but still thank you :)