The angle between the planes `2x+y+z=3`, `x-y+2z=5` is

Measure of angle between the planes x+y+2z=3 and 2x-y+ 2z=5 is

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

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

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

If theta is the angle between the planes 2x-y+2z=3 and 6x-2y+3z=5 , then cos theta=?

The angle between the planes 3x-4y+5z=0 and 2x-y-cz=5 is

What is the angle between the planes 2x-y+z=6 and x+y+2z=3 ?

Find the angle between the planes 2x + y - 2z = 5 and 3x - 6y - 2z = 7 . Using vector method.

Find the angle between the planes : (i) 3 x - 6y - 2z = 7 " " 2x + y - 2z = 5 (ii) 4 x + 8y + z = 8 " " and y + z = 4 (iii) 2 x - y + z =6 " " and x + y + 2z = 7 .