Question

hi mates❤

plz help...

what Is the value of above eq. in picture.

best ans plzz❤​

Answer 1

let,

$x = {cos}^{ - 1} ( \frac{1}{4} ) \\ \\ \cos(x) = 1 \div 4 \\ \\ x = \: \: {cos}^{ - 1}0.25 \\ \\ x = 75.52 \: degrees$

This is the answer required