# Write on the trigonometric form the following complex number: -3(Cos#pi#/4 + isin#pi#/4) ?

see explanation.

We could also write it in rectangular, or standard, form:

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The trigonometric form of the complex number (-3(\cos(\frac{\pi}{4}) + i\sin(\frac{\pi}{4}))) is (-3\sqrt{2}(\cos(\frac{\pi}{4} + \pi) + i\sin(\frac{\pi}{4} + \pi))).

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