what will be the differentiation of cos²2x?

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what will be the differentiation of cos²2x?

Nibha kumari 13th May, 2021

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Answer (1)

Palak kumari 13th May, 2021

Hi there,
According to the formulas of differentiation:-
Cos²2x
=> using the chain rule we'll get:-
=> -2cos2x * sin2x * 2
=> -4cos2x *Sin2x
=> -2Sin4x (since, sin2x=2Sinxcosx)
Hope it helps!

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