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Garfield10
Garfield10 Garfield10
  • 30-01-2017
  • Mathematics
Answered

Express the complex number in trigonometric form. -2i

Verified Answer :

LammettHash
LammettHash LammettHash
  • 30-01-2017

\(-2i=2\left(\cos\left(-\dfrac\pi2\right)+i\sin\left(-\dfrac\pi2\right)\right)=2\left(\cos\dfrac\pi2-i\sin\dfrac\pi2\right)\)

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