Question

How do you verify sinx=cos(π2−x)?

Answer 1

$prove \: that \: \\ \cos(\pi2 - x) = \sin(x) \\ lhs \\ \cos(360 - x) \\ = \cos(90 \times 4- x) \\ = cosx \: which \: is \: not \: sinx \\ if \: x \: is \: everything \: \\ except \: \binom{\pi}{4} so \: either \: x \: \\ should \: be \: 45 \: degree \: or \: ur \: ques \: is \: wrong$