Question

cos _____ = 0
30°
90°
60°
45°​

Answer 1

Answer:

90° is the correct answer

cos theta 90° = 0

Answer 2

$\: \: \: \: \: \: \: \: \: \: \: \: \: \fcolorbox{pink}{yellow}{{\fcolorbox{red}{aqua}{ \: \: cos \: 90 \degree = 0}}}$