Answer:
-9
Step-by-step explanation:
We have to find the exact value of: arc cos ( sin ( π /6 ) ).
We know that:
sin ( π/6 ) = sin 30° = 1/2
Arc cos is the inverse function of cosine.
arc cos ( 1/2 ) = 60° = π/3
Step-by-step explanation:
- First write the given equation

- Now take all polynomials to left side.

