Introduction to Trigonometry
Introduction to Trigonometry Que. 1. In triangle ABC, right-angled at B, AB = 24 cm and BC = 7 cm. Find the value of the following: (i) sin A, cos A By Pythagoras theorem in triangle ABC, K2 = L2 + A2 (AC)2 = (BC)2 + (AB)2 AC2 = (7)2 + (24)2 AC2 = 49 …

