CBSE Class 11 commerce: Sum and Difference Formulae Videos | Deriving addition, subtraction formulae of trigonometric angles
Deriving addition, subtraction formulae of trigonometric angles
Derive the formula of sin A +/- sin B, cos A +/- cos B and 2sinxcosy, 2sinxsiny, 2cosxcosy, 2cosxsiny and their application in simplifying the identities.
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