# What is the equation of the tangent line of # f(x)=(sinpi/x)/x # at # x=1 #?

I think this is a trick or challenge question. What is

The line itself is the tangent line to a line at a point on the line.

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The equation of the tangent line of f(x)=(sin(pi/x))/x at x=1 is y = -pi/2x + pi/2.

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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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