1.

If (4k _(1), k _(2) ^(2) , 1) and ( 4k _(2) , k _(2) ^(2), 1) are two points lying on the plane in which (2,3,2) and (1,2,1) are mirror image to each other, then k _(1) k _(2) is equal to

Answer»

`-3/2`
`-/5/2`
`-7/2`
`-9/2`

ANSWER :D


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