$\"\"$

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

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Find $\"\"$ .

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Now we need to find $\"\"$ .

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If $\"\"$ and $\"\"$ are two vectors, then the cross product of $\"\"$ is $\"\"$

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$\"\"$

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$\"\"$

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Find $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .