1.

Let A=(1,1,-1),B=(0,2,1) be two given points. Also, let P:x+y+z=0 be a plane. If A^(') and B^(') are the feet of perpendicular from A and B, respectively, on the plane 'P' then A^(')B^(') equals

Answer»

`SQRT(14)/3`
`sqrt(5/3)`
`sqrt(3)`
`sqrt(2/3)`

ANSWER :A


Discussion

No Comment Found

Related InterviewSolutions