# NCERT Class 12-Mathematics: Chapter –2 Inverse Trigonometric Function Part 4

Get top class preparation for NCO Class-2 right from your home: fully solved questions with step-by-step explanation- practice your way to success.

Download PDF of This Page (Size: 132K) ↧

**Question 18:**

Find the values of which satisfy the equation

**Answer:**

From the given equation, we have

**Question 19:**

Solve the equation

**Answer:**

From the given equation, we have

Squaring, we get

Note that is the only root of the equation as dose not satisfy it

**Question 20:**

Show that

**Answer:**

## Objective Type Questions

### Choose the Correct Answer from the Given Four Options in Each of the Examples 21 to 41

**Question 21:**

Which of the following corresponds to the principal value branch of tan–1?

(A)

(B)

(C)

(D)

**Answer:**

(A) Is the correct answer.

**Question 12:**

The principal value branch of is

(A)

(B)

(C)

(D)

**Answer:**

(B) Is the correct answer.

**Question 23:**

One branch of other than the principal value branch corresponds to

(A)

(B)

(C)

(D)

**Answer:**

(D) Is the correct answer.