Question

If कॉस थीटा+ साइन थीटा =रूट 2 कोस थीटा then सो दैट कोस थीटा -साइन थीटा =रूट 2 साइन थीटा .
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Answer 1

Answer:

Given that ,

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<br> Multiply both sides by

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<br> Alternative Method : <br> We have, <br>

<br> Squaring both sides , we get <br>

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