Question

Prove sin^2A + cos^2A + cot^2A = 1

Answer 1

Answer:

Step-by-step explanation:

If A=45,-45 then sin^2A+cos^2A+cot^2A=1

Answer 2

I think the question is wrong becuse

$sin {}^{2} (a) + \cos {}^{2} (a) + \cot { }^{2} (a) = 1 + \cot {}^{2} (a) = cosec {}^{2}(a)$