$\"\"$

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

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Find the value of $\"\"$ if $\"\"$ .

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

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in the expression.

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$\"\"$

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$\"\"$

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$\"\"$

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

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Values of $\"\"$ are $\"\"$ and $\"\"$ .

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$\"\"$

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Values of $\"\"$ are $\"\"$ and $\"\"$ .