$\"\"$

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The values are $\"\"$ and $\"\"$

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Find the expression is $\"\"$ :

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Find dot product of $\"\"$ :

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$\"\"$

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$\"\"$

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Find cross product of $\"\"$ :

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$\"\"$

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$\"\"$

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$\"\"$

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The value of $\"\"$ .

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$\"\"$

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The value of $\"\"$ is $\"\"$ .