A plane meets of axes in P,Q and R such that centroid PQR is (1,2,3). The equation of the plane is (A) `6x+3y+2z=6` (B) `6x+3y+2z=1` (C) `6x+3y+2z=18` (D) `x+2y+3z=1`

A plane meets the coordinate axes at P, Q and R such that the centroid of the triangle is (3,3,3). The equation of he plane is (A) x+y+z=9 (B) x+y+z=1 (C) x+y+z=3 (D) 3x+3y+3z=1

Let the equations of two planes be P_1: 2x-y+z=2 and P_2: x+2y-z=3 Equation of the plane which passes through the point (-1,3,2) and is perpendicular to each of the plane P_1 and P_2 is (A) x-3y-5z+20=0 (B) x+3y+5z-18=0 (C) x-3y-5z=0 (D) x+3y-5z=0

A plane through the line (x-1)/1=(y+1)/(-2)=z/1 has the equation (A) x+y+z=0 (B) 3x+2y-z=1 (C) 4x+y-2z=3 (D) 3x+2y+z=0

the line 6x=3y=2z

Find the angle between the planes 2x - y + 3z = 6 and x + y +2z =7 .

The acute angle between the planes 2x-y+z=6 and x+y+2z=3 is

The angle between the planes 2x-y+3z=6 and x+y+2z=7 is

2x + 3y-5z = 7, x + y + z = 6,3x-4y + 2z = 1, then x =