1.

If a plane passes through the point (1, 1, 1) and is perpendicular to the line (x - 1)/3 = (y - 1)/0 = (z - 1)/4, then its perpendicular distance from the origin is -

Answer»

`3/4`
`4/3`
`7/5`
`1`

SOLUTION :Equation of the PLANE which PASSES through (1,1,1) and dr's of its normal are 3,0,4 is-
`3(x - 1) + 0(y - 1) + 4(Z -1) = 0`
`3X + 4z - 7 = 0`
Perpendicular distance from the origin is-
`=|(-7)/5| = 7/5`.


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