# NCERT Class 11-Math՚S: Chapter – 3 Trigonometric Functions Part 17 (For CBSE, ICSE, IAS, NET, NRA 2022)

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**Question 48**:

The value of is

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 49**:

The value of is equal to

(A)

(B)

(C)

(D)

**Answer: (B)**

**Question 50**:

If , then the value of sin is equal to

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 51**:

If then the value of is

(A)

(B)

(C)

(D) Not defined

**Answer: (B)**

**Question 52**:

If lies in third quadrant then the value of is

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 53**:

Number of solutions of the equation lying in the interval is

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 54**:

The value of is given by

(A)

(B)

(C)

(D)

**Answer: (A)**

**Question 55**:

If A lies in the second quadrant and , then the value of is equal to

(A)

(B)

(C)

(D)

**Answer: (B)**

**Question 56**:

The value of is

(A)

(B)

(C)

(D)

**Answer: (A)**