1.

4. मान ज्ञात कोजिए-sin36° sin 54°c0s34° cos36°

Answer»

Explanation : sin36/cos54 - sin54/cos36 = sin(90-54)/cos54 - sin(90-36)/cos36 = cos54/cos54 - cos36/cos36 = 1 - 1 = 0

solution : 0

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