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JEE Exam  >  JEE Notes  >  Mathematics (Maths) Main & Advanced  >  NCERT Solutions: Exercise 3.2 - Trigonometric Functions

NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q1: Find the values of other five trigonometric functions if  NCERT Solutions: Exercise 3.2 - Trigonometric Functions , x lies in third quadrant.
Ans: NCERT Solutions: Exercise 3.2 - Trigonometric Functions
NCERT Solutions: Exercise 3.2 - Trigonometric Functions
Since x lies in the 3rd quadrant, the value of sin x will be negative.
NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q2: Find the values of other five trigonometric functions if  NCERT Solutions: Exercise 3.2 - Trigonometric Functions , x lies in second quadrant. 
Ans: NCERT Solutions: Exercise 3.2 - Trigonometric Functions
NCERT Solutions: Exercise 3.2 - Trigonometric Functions
Since x lies in the 2nd quadrant, the value of cos x will be negative
NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q3: Find the values of other five trigonometric functions if  NCERT Solutions: Exercise 3.2 - Trigonometric Functions , x lies in third quadrant.
Ans: NCERT Solutions: Exercise 3.2 - Trigonometric Functions
NCERT Solutions: Exercise 3.2 - Trigonometric Functions
NCERT Solutions: Exercise 3.2 - Trigonometric Functions
Since x lies in the 3rd quadrant, the value of sec x will be negative.
NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q4: Find the values of other five trigonometric functions if  NCERT Solutions: Exercise 3.2 - Trigonometric Functions , x lies in fourth quadrant.
Ans: NCERT Solutions: Exercise 3.2 - Trigonometric Functions
NCERT Solutions: Exercise 3.2 - Trigonometric Functions
Since x lies in the 4th quadrant, the value of sin x will be negative.
NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q5: Find the values of other five trigonometric functions if  NCERT Solutions: Exercise 3.2 - Trigonometric Functions , x lies in second quadrant.
Ans: NCERT Solutions: Exercise 3.2 - Trigonometric Functions
NCERT Solutions: Exercise 3.2 - Trigonometric Functions
Since x lies in the 2nd quadrant, the value of sec x will be negative.

∴sec x = NCERT Solutions: Exercise 3.2 - Trigonometric Functions
NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q6: Find the value of the trigonometric function sin 765°
Ans: It is known that the values of sin x repeat after an interval of 2π or 360°.

NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q7: Find the value of the trigonometric function cosec (-1410°)
Ans: It is known that the values of cosec x repeat after an interval of 2π or 360°.

NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q8: Find the value of the trigonometric function  NCERT Solutions: Exercise 3.2 - Trigonometric Functions
Ans: It is known that the values of tan x repeat after an interval of π or 180°.

NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q9: Find the value of the trigonometric function NCERT Solutions: Exercise 3.2 - Trigonometric Functions
Ans: It is known that the values of sin x repeat after an interval of 2π or 360°.

NCERT Solutions: Exercise 3.2 - Trigonometric Functions

Q10: Find the value of the trigonometric function NCERT Solutions: Exercise 3.2 - Trigonometric Functions
Ans: It is known that the values of cot x repeat after an interval of π or 180°.

NCERT Solutions: Exercise 3.2 - Trigonometric Functions

The document NCERT Solutions: Exercise 3.2 - Trigonometric Functions is a part of the JEE Course Mathematics (Maths) for JEE Main & Advanced.
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FAQs on NCERT Solutions: Exercise 3.2 - Trigonometric Functions

1. What are the basic trigonometric functions?
Ans. The basic trigonometric functions are sine, cosine, and tangent, denoted as sin, cos, and tan respectively. These functions relate the angles of a triangle to the lengths of its sides.
2. How can trigonometric functions be used to solve right-angled triangles?
Ans. Trigonometric functions can be used to find unknown side lengths or angles in a right-angled triangle by using the ratios of the sides (opposite, adjacent, and hypotenuse) with respect to a given angle.
3. What is the unit circle and how is it related to trigonometric functions?
Ans. The unit circle is a circle with a radius of 1, centered at the origin of a coordinate plane. Trigonometric functions can be defined using the coordinates of points on the unit circle, making it a useful tool in understanding trigonometry.
4. How are trigonometric functions used in real-life applications?
Ans. Trigonometric functions are used in various fields such as engineering, physics, and astronomy to model periodic phenomena like sound waves, motion of objects, and planetary orbits.
5. How can one determine the values of trigonometric functions for different angles?
Ans. Trigonometric functions can be calculated using a calculator or trigonometric tables, or by using trigonometric identities and properties to simplify the expressions for specific angles.
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Apr 21, 2026 Last updated
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Document Description: NCERT Solutions: Exercise 3.2 - Trigonometric Functions for JEE 2026 is part of Mathematics (Maths) for JEE Main & Advanced preparation. The notes and questions for NCERT Solutions: Exercise 3.2 - Trigonometric Functions have been prepared according to the JEE exam syllabus. Information about NCERT Solutions: Exercise 3.2 - Trigonometric Functions covers topics like and NCERT Solutions: Exercise 3.2 - Trigonometric Functions Example, for JEE 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for NCERT Solutions: Exercise 3.2 - Trigonometric Functions.
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