Yefim S. answered 01/12/20
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1 - 4sin2x·cos2x = 1 - (2sinxcosx)2 = 1 - sin22x = cos22x
James B.
asked 01/12/20
Yefim S. answered 01/12/20
Math Tutor with Experience
1 - 4sin2x·cos2x = 1 - (2sinxcosx)2 = 1 - sin22x = cos22x
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