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Mathematics, 22.06.2019 22:30 serenityjohnson98765

Can someone explain to me why the answer is 3cos3x (it has something to do with chain rule i think)


Can someone explain to me why the answer is 3cos3x (it has something to do with chain rule i think)<

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Can someone explain to me why the answer is 3cos3x (it has something to do with chain rule i think)<...
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