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Find the values of x and y for which vec...

Find the values of `x` and `y` for which vectors `A=(6hati+xhatj-2hatk)` and `B(5hati-6hatj-yhatk)` are be parallel

A

`x-=0, y=2/3`

B

`x=-36/5,y=5/3`

C

`x=-15/3, y=23/5`

D

`x=36/5, y=15/4`

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(b) Condition for parallel vectors `AxxB=0`
`=|(hati, hatj, hatk),(6, x, -2), (5, -6, y)|=0`
`-hati(-xy-12)-hatj(-6y+10)+hatk(-36-5x)=0`
or `xy=-12, +6y=10-36=5ximpliesx=-36/5,y=5/3`
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