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This document contains a slide presentation on the topic of trigonometric ratios and identities from a class on basic mathematics taught by Anju medam. The presentation covers multiple angles, sub-multiple angles, and some illustrative problems involving trigonometric identities. It provides formulas and step-by-step workings for deriving trigonometric ratios of multiple angles like 2A, 3A and sub-multiple angles like A/2, A/3 in terms of the angle A. It also solves problems applying trigonometric identitie
- Author
- mahesh_hivarkar
- Language
- EN