SSC CHSL 2022 PYQ — Question 61

The correct answer is Option 2 i.e. ${{5\pi\over 6}}$

Given:

 cos θ = ${{\sqrt3} \over2}.$

Explanation:

We Know that, cos 30° = cos 150° = ${{\sqrt3} \over2}.$

So, the value of θ will be either $\pi \over 6$ or $5\pi \over 6$

Hence the according to the given options, θ = $5\pi \over 6$.