# How do you find the derivative of #y=tan^2(3x)#?

By using the Chain Rule twice,

Let us look at some details. By Chain Rule,

by cleaning up a bit,

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To find the derivative of y = tan^2(3x), you use the chain rule. The derivative is dy/dx = 6tan(3x)sec^2(3x).

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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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