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Which of the following pairs of vectors ...

Which of the following pairs of vectors are parallel ?

A

`vecA = hati - 2 hatj, vecB = hati - 5hatj`

B

`vecA = hati - 10 hatj, vecB = 2hati - 5hatj`

C

`vecA = hati - 5hatj, vecB = hati - 10 hatj`

D

`vecA = hati - 5hatj, vecB = 2hati - 10hatj`

Text Solution

Verified by Experts

The correct Answer is:
D

`vecA = hati - 5hatj`
`vecB = 2hati - 10 hatj = 2(hati - 5hatj) = 2hatA`
Thus, `vecB||vecA.`
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