1.

Equation of the plane through the mid-point of the join of A (4,5,-10) and B (-1,2,1) and perpendicular to AB is

Answer»

`5x + 3Y - 11 z + (135)/(2) =0`
`5x + 3y - 11 z = (135)/(2)`
`5x + 3y + 11 z = 135 `
` 5x + 3y - 11 z + (185)/(2) =0`

Answer :B


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