1.

Equation of the bisector of the angle between the planes x+2y+2z-9=0,4x-3y+12z+13=0

Answer»

`25x+17y+62z-78=0`
`x+35y-10z-156=0`
`25x+17y+62z-156=0`
`x+35y-10z-78=0`

ANSWER :A


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