Answer each of the following questions in one word or one sentence or as per exact requirement of the question:
Write the principal value of 
.
Given sin-1 (-1/2)
We know that sin-1 (-θ) = -sin-1 (θ)
= - sin-1 (1/2)
= π/6
∴ sin-1 (-1/2) = π/6
1
Answer each of the following questions in one word or one sentence or as per exact requirement of the question:
Write the principal value of .
Given sin-1 (-1/2)
We know that sin-1 (-θ) = -sin-1 (θ)
= - sin-1 (1/2)
= π/6
∴ sin-1 (-1/2) = π/6