# How can you use trigonometric functions to simplify # 13 e^( ( pi)/8 i ) # into a non-exponential complex number?

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You can use Euler's formula, ( e^{ix} = \cos(x) + i \sin(x) ), to rewrite ( e^{\frac{\pi}{8}i} ) in terms of trigonometric functions. Then, you can simplify the expression accordingly.

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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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