Math, asked by dorothymandal14, 20 days ago

যদি 2 cos A = cos B + cos* B এবং 2 sin A = sin B- sin B হয় তবে দেখাও যে, sin (A – B) = 1/3

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Answered by Talkingkim

0

Answer:

Trigonometry

Step-by-step explanation:

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