# What is the equation of the line normal to # f(x)=lnx^2-1/x^2# at # x=-2#?

The normal line to this function at the given point has equation

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The equation of the line normal to f(x) = ln(x^2) - 1/x^2 at x = -2 is y = -4x - 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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