How do you find inverse sin (-1/2)?

Sine is the primary trigonometry function.

Answer: sin^-1  (-1/ 2)= - 𝜋 / 6

Let's find the value of sine inverse ratio.

Explanation:

Let sin^-1  (-1/ 2) = θ

⇒ sin θ = -1/ 2

As we know that, sin 𝜋 / 6 = 1/ 2 

⇒ sin θ = sin (- 𝜋 / 6)

⇒ θ = - 𝜋 / 6

Thus, the value of sin^-1  (-1/ 2) is - 𝜋 / 6.