\"\"

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The expression is  \"\".

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

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Find the expression.

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

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                  \"\"                     (Multiplication:\"\")

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                  \"\"                         (Substitution:\"\")

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                  \"\"                           (Subtraction:\"\")

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                  \"\"                             (Substitute \"\")

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Therefore, the value is imaginary.

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The value of expression \"\" is not a real number.

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\"\"

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The value of expression \"\" is not a real number.