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OpenStudy (anonymous):
Express the complex number in trigonometric form. -5i
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OpenStudy (anonymous):
okay.....start by getting the module, and then see which angle is -i
OpenStudy (anonymous):
180?
OpenStudy (anonymous):
@Syderitic
OpenStudy (anonymous):
not really, you see i is at 90º so -i will be at 270º
OpenStudy (anonymous):
okay so it should be 5(cos 270° + i sin 270°)
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OpenStudy (anonymous):
yup! banzai!
OpenStudy (anonymous):
haha thanks
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