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What is the derivative of #f(x) = sin(x)-cos(x)#?

Answer 1

Ezekiel Alexander

#cos x + sin x #

Derivative of #sin x# is # cos x # and derivative of #cosx# is #-sinx# .

I hope that's helpful. Regards.

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Answer 2

Samantha Adkison

To find the derivative of ( f(x) = \sin(x) - \cos(x) ):

[ f'(x) = \cos(x) + \sin(x) ]

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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