# NCERT Class 12-Mathematics: Chapter –2 Inverse Trigonometric Function Part 7

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**Question 35:**

The value of is

(A)

(B)

(C)

(D)

**Answer:**

(B) Is the correct answer.

Let .

Now **tion 36:**

If then value of is

(A)

(B)

(C)

(D)

**Answer:**

(A) Is the correct answer. Given that

Therefore,

**Question 37:**

The value of is

(A)

(B)

(C)

(D)

**Answer:**

(A) Is the correct answer.

**Question 38:**

The value of the expression is

(A)

(B)

(C)

(D)

**Answer:**

(D) Is the correct answer.

**Question 39:**

The equation has

(A) No solution

(B) Unique solution

(C) Infinite number of solutions

(D) Two solutions

**Answer:**

(B) Is the correct answer.

We have

Adding them, we get

**Question 40:**

If then

(A)

(B)

(C)

(D)

**Answer:**

(B) Is the correct answer. We have