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The two adjacent sides of a parallelogram are 2i-4j+5k and i- 2j - 3k. Find the unit vector

+3 votes

asked Jan 29, 2019 in JEE by kratos

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

vector algebra
cross product
jee
vectors
jee mains
vector
class-12

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1 Answer

+6 votes

answered Jan 22, 2021 by kratos

Best answer

Let two adjacent sides of a parallelogram be

Area of given parallelogram

Required unit vector parallel to one diagonal is

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