3. Trigonometric Functions

Challenges are what make life interesting. Overcoming them is what makes them meaningful.

Trigonometric Functions Class 11 Maths

Positive and negative angles. Measuring angles in radians and in degrees and conversion from one measure to another. Definition of trigonometric functions with the help of unit circle. Truth of the identity sin2x + cos2x = 1, for all x. Signs of trigonometric functions. Domain and range of trigonometric functions and their graphs. Expressing sin (x ± y) and cos (x ± y) in terms of sin x, sin y, cosx and cos y. Deducing the identities like the following:

Advertisements

Download Formula Sheet

Inverse Trigonometry Formula Sheet 1
Inverse Trigonometry Formula Sheet 2
Class 11 All Trigonometry Formulas Mobile

Select Lecture

Trigonometric Functions Lecture 1
Lecture - 1
Trigonometric Functions Lecture 2
Lecture - 2
Advertisements
Trigonometric Functions Lecture 3
Lecture - 3
Trigonometric Functions Lecture 4
Lecture - 4
Trigonometric Functions Lecture 5
Lecture - 5
Advertisements
Trigonometric Functions Lecture 6
Lecture - 6
Advertisements
Trigonometric Functions Lecture 7
Lecture - 7
Trigonometric Functions Lecture 8
Lecture - 8
Advertisements
Trigonometric Functions Lecture 9
Lecture - 9
Trigonometric Functions Lecture 10
Lecture - 10
Trigonometric Functions Lecture 11
Lecture - 11
Advertisements
Trigonometric Functions Lecture 12
Lecture - 12
Trigonometric Functions Lecture 13
Lecture - 13