# What is the derivative of #f(t)=cos^2(3t+5)#?

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The derivative of ( f(t) = \cos^2(3t + 5) ) with respect to ( t ) is ( -6\cos(3t + 5)\sin(3t + 5) ).

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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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