$\"\"$

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The vectors are $\"\"$ and $\"\"$ .

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Dot product definition: $\"\"$ .

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$\"\"$

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Find magnitude of vector $\"\"$ : $\"\"$ .

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$\"\"$

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Projection of $\"\"$ onto $\"\"$ : $\"\"$ .

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$\"\"$

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$\"\"$

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Apply definition: $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ and $\"\"$ .