CBSE Notes, Lectures

CBSE - Mathematics - Introduction to Trigonometry

Introduction to Trigonometry

NCERT Exercise Exercise 8.1

In triangle ABC, right-angled at B, if tan A =1/√3 find the value of:
(i) sin A cos C + cos A sin C
(ii) cos A cos C – sin A sin C

 


(i)

If BC is k, then AB will be√3, where k is a positive integer.

In ΔABC,

AC2 = AB2 + BC2

.