Answer each of the following questions in one word or one sentence or as per exact requirement of the question:
Write the value of the expression 
, when 
.
Given 
We know that sin-1 x + cos-1 x = π/2
= tan (π/4)
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 the expression , when .
Given
We know that sin-1 x + cos-1 x = π/2
= tan (π/4)