# What is the exact value of tan 86.8?

It's fair to say there is no exact value of

This is a rational fraction of a circle, so its trig functions are algebraic numbers, each a root of a polynomial equation with integer coefficients.

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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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- What is the exact value of tan 86.8?

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