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In sinA=sinB and cos A=cos B, then prove...

In `sinA=sinB` and `cos A=cos B`, then prove that `sin((A-B)/2)=0`

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To prove that \( \sin\left(\frac{A-B}{2}\right) = 0 \) given that \( \sin A = \sin B \) and \( \cos A = \cos B \), we can follow these steps: ### Step 1: Use the sine identity Since \( \sin A = \sin B \), we can express this as: \[ \sin A - \sin B = 0 \] Using the sine subtraction formula, we have: ...
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