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F(x) = tan 2x , f'(x) = ....
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F(x) = tan 2x , f'(x) = ....

User Piotr Olaszewski
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2 Answers

6 votes
using the chain rule :
[\tan(2x)]'=(2x)'\tan'(2x)=(2)/(\cos^2(2x))
User CWBudde
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7 votes

f(x)=\tan 2x\\ f'(x)=\sec^2 2x\cdot2=2\sec^2 2x
User Brennon
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