$\"\"$

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The complex number in trigonometric form is $\"\"$ .

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$\"\"$ (Write original trigonometric form)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Simplify)

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$\"\"$ (Use calculator)

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$\"\"$ (Simplify) $\"\"$

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The standard form of complex number is $\"\"$ .

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