Question #6c946

1 Answer
Jul 18, 2017

theta = npiθ=nπ, n = 0, 1, 2, 3, ...

Explanation:

cos theta = csc theta -: cot theta

cos theta= 1/sin theta -: cos theta/sin theta

cos theta = 1/cancel(sin theta) * cancel(sin theta)/cos theta

cos^2 theta = 1

cos theta = +-1

theta = 0^@, 180^@, 360^@,... or

theta = npi, n = 0, 1, 2, 3, ...