Answer each of the following questions in one word or one sentence or as per exact requirement of the question:
Write the value of 
.
Given sin-1 (sin 3π/5)
= sin-1 [sin (π – 2π/5)]
= sin-1 (sin 2π/5)
= 2π/5
∴ sin-1 (sin 3π/5) = 2π/5
1
Answer each of the following questions in one word or one sentence or as per exact requirement of the question:
Write the value of .
Given sin-1 (sin 3π/5)
= sin-1 [sin (π – 2π/5)]
= sin-1 (sin 2π/5)
= 2π/5
∴ sin-1 (sin 3π/5) = 2π/5