# How do you find the exact value of the sine, cosine, and tangent of the number 2pie/3, without using a calculator?

Find the exact values of 6 trig functions of (2pi)/3

The Table of trig Values of Special Arcs, found in any trig book, gives these values. sin (2pi)/3 = sqrt3/2 cos (2pi)/3 = -1/2 tan (2pi)/3 = - sqrt3. from these values you can deduct other trig functions values.

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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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