Mathematics · Trigonometry

यदि sin A + cos A = 1 2√2 है, तो sin 4 A + cos 4 A का मान ज्ञात कीजिए।

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यदि sin A + cos A = 1 2&radic;2 है, तो sin 4 A + cos 4 A का मान ज्ञात कीजिए।