$\"\"$

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The expression is $\"\"$ .

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The values are $\"\"$ and $\"\"$ .

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Simplify the expression.

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

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$\"\"$ (Add: $\"\"$ )

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

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Therefore, the value of the expression is $\"\"$ .

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$\"\"$

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$\"\"$ .