1.

Consider the lines L _(1) : (x +1)/( 3) = (y+2)/(1) = (z+1)/(2), L_(2): (x-2)/(1) = (y+2)/(2) = (z-3)/(3) The unit vector perpendicular to both L _(1) and L _(2) is

Answer»

`(-hati + 7 hatj + 7 HATK)/(sqrt99)`
`(- hati - 7 hatj + 5 hatk)/(5sqrt3)`
`(- hati + 7 hatj + 5 hatk)/(5sqrt3)`
`(7 hati - 7 hatj - hatk)/(sqrt99)`

ANSWER :B


Discussion

No Comment Found