Math, asked by Anjaligurudwara, 1 month ago

Cos 5theta - Cos 7theta = 2 sin 6 theta . Sin theta

Answers

Answered by sakshi1158

Answer:

sin5thetacos3theta = sin9thetacos7theta 2sin5thetacos3theta = 2sin9thetacos7theta sin8theta + sin2theta = sin (16theta) + sin2theta sin8theta - sin16theta .

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Cos 5theta - Cos 7theta = 2 sin 6 theta . Sin theta​

Answers

Cos 5theta - Cos 7theta = 2 sin 6 theta . Sin theta