__Ask a Question__

### Question Asked by a Student from EXXAMM.com Team

** Q 1267534485. ** Consider three planes

`P_1 : x - y + z = 1`

`P_2 : x + y - z = -1` and `P3 : x - 3y + 3z = 2`

Let `L_1, L_2, L_3` be the lines of intersection of the planes `P_2` and `P_3`, `P_3` and `P_1,P_1` and `P_2`, respectively.

Statement I: At least two of the lines `L_1, L_2` and `L_3` are non-parallel.

Statement II: The three planes do not have a common point.

**JEE 2008 **