$\"\"$

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The complex number is $\"\"$ .

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Express complex numbers in polar form.

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The polar or trigonometric form of the complex number $\"\"$ is $\"\"$ .

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Consider $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Find $\"\"$ .

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If $\"\"$ , then $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Polar form of $\"\"$ is $\"\"$ .

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$\"\"$

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De Moivre $\"\"$ s Theorem:

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If the polar form of a complex number is $\"\"$ , then for positive integers $\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$ .

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$\"\"$

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$\"\"$ .