Math, asked by jerry21052004, 8 months ago

sin4a + cos4a = 1- 2sin2a*cos2a

Answers

Answered by sandy1816

4

Answer:

sin⁴a+cos⁴a

=(sin²a)²+(cos²a)²

=(sin²a+cos²a)²-2sin²a cos²a

=1-2sin²acos²a

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