\"\"

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The function is \"\" and \"\".

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Find the value \"\".

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Case(i): \"\"

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\"\"                                          (Original function)

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\"\"       (Substitute \"\")

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\"\"             (Simplify)

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\"\"             (Multiply)

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\"\"                       (Simplify)

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\"\"             (Multiply each side by \"\")

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\"\"

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Case(ii): \"\".

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\"\"                                                   (Original function)

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\"\"                  (Substitute \"\")

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\"\"          (Simplify)

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\"\"                          (Multiply)

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\"\"       (Multiply each side by \"\")

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Add both cases.

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\"\".

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\"\".

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

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\"\"

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\"\".