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OpenStudy (anonymous):
Express the complex number in trigonometric form. -2i
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ganeshie8 (ganeshie8):
\(a + bi = r(\cos \theta + i \sin \theta)\)
ganeshie8 (ganeshie8):
maybe plot the complex number in plane, u wud see what its angle and magnitude are
ganeshie8 (ganeshie8):
|dw:1395039426023:dw|
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