# How do you find the derivative of #f(x)=pi^cosx#?

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To find the derivative of ( f(x) = \pi^{\cos(x)} ), you would use the chain rule. The derivative is ( -\pi^{\cos(x)} \cdot \ln(\pi) \cdot \sin(x) ).

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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.

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.

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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