1.

Let L _(1) : (x -1)/( 1) = (y+1)/(2) = (z-2)/(2) L _(2) : x - 2y -1 =0lamda y - z + 2pi : 2x + y-z =0 If the line L _(1) is perpendicular to the line L_(2) then lamda equals

Answer»

1
`-2`
3
`-3`

ANSWER :B


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