Question

Find the value of cosx if sinx greater or equal to 1

Answer 1

Answer:

$\sin(x) \geqslant 1 \\ only \: \: possible \: \: if \\ \sin(x) = 1 \\ x = (4n + 1) \frac{\pi}{2} \\ cos( x) = \cos( (4n + 1) \frac{\pi}{2}) = 0$