# What is the second derivative of #f(x)=x^2/(x^2+3) #?

Using the quotient rule which states that:

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The second derivative of ( f(x) = \frac{x^2}{x^2 + 3} ) is ( f''(x) = \frac{12x^2 - 18}{(x^2 + 3)^3} ).

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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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