The two adjacent sides of a parallelogram are 2i-4j+5k and i-2j-3k

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asked Jan 24, 2018 in Mathematics by sforrest072 (157,439 points) 60 409 934

The two adjacent sides of a parallelogram are 2i-4j+5k and i-2j-3k Find the unit vector parallel to its diagonal. Also, find its area.

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answered Jan 24, 2018 by mdsamim (213,225 points) 5 10 15
 
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Thus, the unit vector parallel to the diagonal is

Hence, the area of the parallelogram is 11√5 square units.

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