\"\"

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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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               \"\"              (Multiply)

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

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

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

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\"\"

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\"\".