## NCERT Solutions for Class 11 Maths Chapter 3 – Trigonometric Functions Ex 3.2

#### Page No 63:

#### Question 1:

Find the values of other five trigonometric functions if ,

*x*lies in third quadrant.#### Answer:

Since

*x*lies in the 3^{rd}quadrant, the value of sin*x*will be negative.#### Question 2:

Find the values of other five trigonometric functions if ,

*x*lies in second quadrant.#### Answer:

Since

*x*lies in the 2^{nd}quadrant, the value of cos*x*will be negative#### Question 3:

Find the values of other five trigonometric functions if ,

*x*lies in third quadrant.#### Answer:

Since

*x*lies in the 3^{rd}quadrant, the value of sec*x*will be negative.#### Question 4:

Find the values of other five trigonometric functions if ,

*x*lies in fourth quadrant.#### Answer:

Since

*x*lies in the 4^{th}quadrant, the value of sin*x*will be negative.#### Question 5:

Find the values of other five trigonometric functions if ,

*x*lies in second quadrant.#### Answer:

Since

*x*lies in the 2^{nd}quadrant, the value of sec*x*will be negative.
∴sec

*x*=#### Question 6:

Find the value of the trigonometric function sin 765°

#### Answer:

It is known that the values of sin

*x*repeat after an interval of 2π or 360°.#### Question 7:

Find the value of the trigonometric function cosec (–1410°)

#### Answer:

It is known that the values of cosec

*x*repeat after an interval of 2π or 360°.#### Question 8:

Find the value of the trigonometric function

#### Answer:

It is known that the values of tan

*x*repeat after an interval of π or 180°.#### Question 9:

Find the value of the trigonometric function

#### Answer:

It is known that the values of sin

*x*repeat after an interval of 2π or 360°.#### Question 10:

Find the value of the trigonometric function

#### Answer:

It is known that the values of cot

*x*repeat after an interval of π or 180°._{}

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