$\"\"$

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The expression is " $\"\"$ ".

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The complex conjugate of $\"\"$ is $\"\"$ .

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$\"\"$

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$\"\"$ (Apply the formula: $\"\"$ )

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$\"\"$

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$\"\"$ (Imaginary unit : $\"\"$ )

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$\"\"$

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= 11.

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$\"\"$

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The solution is 11.