$\"\"$

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

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Angle between the two vectors is $\"\"$ .

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Magnitude of $\"\"$ is,

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$\"\"$

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Magnitude of $\"\"$ is

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$\"\"$

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Dot product of $\"\"$ and $\"\"$ is $\"\"$ .

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Substitute corresponding values in $\"\"$ .

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$\"\"$

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$\"\"$

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Thus, the two vectors are perpendicular.

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$\"\"$

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The two vectors are perpendicular.