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Find the vector equation of the line...

Find the vector equation of the line passing through the point ` 2 hati + hatj - 3 hatk ` and perpendicular to the vectors ` hati + hatj + hatk and hati + 2 hatj - hatk`.

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The correct Answer is:
` bar r = ( 2 hat i + hatj - 3 hatk ) + lamda ( - 3 hati + 2 hatj + hatk ) `.
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