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The equation of line passing through the...

The equation of line passing through the point: (2,-1,4) and in the direction of `hati+hatj-2hatk` in cartesian form is :

A

1) `(x-2)/1=(y+1)/1=(z-4)/-2`

B

2) `(x-2)/1=(y+1)/1=(z+4)/-2`

C

3) `(x+2)/1=(y-1)/1=(z-4)/-2`

D

4) none of these

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