0 Deepak Bora Asked: July 14, 2020In: CBSE In ∆ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine: (i) sin A, cos A (ii) sin C, cos C 0 This is the first question of exercise 8.1, chapter Introduction to Trigonometry, NCERT introduction to trigonometryncert maths solutionstrigonometric ratios