sin²a+cos⁴a=cos²a+sin⁴a
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Answer:
=( sin^2a+ cos^2a) ^2=(cos^2a + sin^2a) ^2
Step-by-step explanation:
using identity sin^2a+ cos^2a = 1 , therefore (1) ^2=(1) ^2, 1 = 1 , hence proven
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