Problem of the Week

Updated at May 30, 2016 9:37 AM

How would you differentiate x7−5x{x}^{7}-5x?

Below is the solution.



ddxx7−5x\frac{d}{dx} {x}^{7}-5x

1
Use Power Rule: ddxxn=nxn−1\frac{d}{dx} {x}^{n}=n{x}^{n-1}.
7x6−57{x}^{6}-5

Done
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