\"\"

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The vectors are \"\".

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\"\"  (Write scalar multiplication form of vector)

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\"\"             (Substitute \"\")

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The dot product of 3u and v is \"\".

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\"\"         (Apply dot product: \"\")

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\"\"                (Substitute \"\")

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\"\"                                         (Simplify)\"\"

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The result of vector \"\" is a scalar (18).