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If hati+ hatj - hatk and 2hati - 3 hatj ...

If `hati+ hatj - hatk` and `2hati - 3 hatj + hatk` are adjacent sides of a parallelogram , then the lengths of its diagonals are

A

`sqrt3, sqrt(14)`

B

`sqrt(13), sqrt(14)`

C

`sqrt(21), sqrt(3)`

D

`sqrt(21), sqrt(13)`

Text Solution

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The correct Answer is:
D
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