1.

The plane x-y-z =2 is rotated through an angle 90^(@) about its line of intersection with the plane x + 2y + z=2. Then equation of this pane in new position is

Answer»

`5x + 4y + z - 10 =0`
`4X + 5y - 3z =0`
`2x + y + 2z =9`
`3X + 4y - 5Z =9`

ANSWER :A


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