Overview

1. 25. (EM) Trigonometry 1 [2021]

Last week, we have completed the chapter, Trigonometry (EM). To handle non-right-angled triangle, we have learnt new formula and rules. To sum up, we learnt: Obtuse angle trigo ratios Sine rule - 2 sides + 1 non-included angle - 2 angles + 1 side Cosine rule - 2 sides + 1 included angle - 3 sides New Area of Triangle formula - where perpendicular height is not given
Buy Now !