Listen NCERT Audio Books - *Kitabein Ab Bolengi*

55

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

Write the value of , when .

Given

We know that tan^{-1} x + cot^{-1} x = π/2

= cos (π/6)

= √3/2

1

3

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

If , then write the value f x + y + z.

6

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

Writ the value of for x > 0.

36

If 4sin^{–1} x + cos^{–1} x = π, then what is the value of x?