Read the following passage and answer th...

Read the following passage and answer the questions. 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)`
Q. The unit vector perpendicular to both `L-(1) and L_(2)` is

`(- hati + 7 hatj + 7 hatk)/(sqrt99)`

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

`(- ahti + 7 hatj + 5 hatk)/(5 sqrt3)`

`(7 hati - 7 hatj - hatk)/(sqrt99)`

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Read the following passage and answer the questions. 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)`
Q. The unit vector perpendicular to both `L-(1) and L_(2)` is