Garfield10 Garfield10

30-01-2017
Mathematics

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Express the complex number in trigonometric form. -2i

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LammettHash LammettHash

30-01-2017

[tex]-2i=2\left(\cos\left(-\dfrac\pi2\right)+i\sin\left(-\dfrac\pi2\right)\right)=2\left(\cos\dfrac\pi2-i\sin\dfrac\pi2\right)[/tex]

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