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Let a=cosA +cosB ,b=4sin A sin B cos A+B then a-b= 2 2 2

Let a=cosA +cosB ,b=4sinA sinBcosA+B then a-b=                                              2      2       2

Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
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