If the vectors 3hati+2hatj-hatk and 6hat...

If the vectors `3hati+2hatj-hatk and 6hati-4xhatj+yhatk` are parallel, then the value of x and y will be

A

`-1,-2`

B

`1,-2`

C

`-1,2`

D

`1,2`

Verified by Experts

The correct Answer is:

A

Obviously, `(3)/(6)=(2)/(-4x)=-(1)/(y)`
`implies x=-1 and y=-2`.

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