Simplify cos2(x)−1sin2(x)−1\frac{\cos^2(x) - 1}{\sin^2(x) - 1}sin2(x)−1cos2(x)−1.
111
tan2(x)\tan^2(x)tan2(x)
cot2(x)\cot^2(x)cot2(x)
−1-1−1