Q36 of 303 Page 4

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:
If 4sin^–1 x + cos^–1 x = π, then what is the value of x?

Given 4 sin^-1 x + cos^-1 x = π

We know that sin^-1 x + cos^-1 x = π/2

∴ x = 1/2

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

If , then find x.

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

Write the value of .

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

If x < 0, y < 0 such that xy = 1, then write the value of tan^–1 x + tan^–1 y.

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

What is the principal value of ?

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:If 4sin–1 x + cos–1 x = π, then what is the value of x?