NCERT Solutions for Class 11 Maths Chapter 3 - Trigonometric Functions

The third NCERT Solutions for class 11th Maths chapter "Trigonometric Functions" starts by defining the chapter topic where general solutions of trigonometric equations, unit circle, domain and range of the trigonometric functions, its signs, and their graphs have been discussed in detail.

This chapter educates a student on the methods of measuring angles in degrees and radians, about positive and negative angles, and how to convert angles from one measure to another. Easily and systematically, teachers teach the process in which the sin (xy) and cos (xy) are expressed concerning sinx, siny, cosx, and cosy. Additionally, the simple applications of these elements are also taught along with inferring the identities that are linked to sin 2x, cos 2x, tan 2x, sin 3x, cos 3x, and tan 3x. In this chapter, the general trigonometric identities and ratios are given in addition to the implementation of those ratios, which are required to solve word problems regarding distances and heights.

Topics discussed in Trigonometric Functions are explained below in short.

• Angles

In this segment, degree measurement, radian measurement, the relation that real numbers and radian share, the relation that radian and degree have amongst them are majorly discussed.

• Trigonometric Functions

What are the signs, domain, and range of trigonometric functions that will be answered in this part?

• Trigonometric Functions in respect of Sum and Difference of Two Angles

The formulas, which are related to the sum and difference of two angles, are described in trigonometric functions.