# How can you use trigonometric functions to simplify # 8 e^( ( 7 pi)/4 i ) # into a non-exponential complex number?

If we have a complex number in trigonometric form:

then according to de Moivre formula we can write, that:

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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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