The angle between the plane `3x+4y=0` and the line `x^2+y^2=0` is (A) `0^0` (B) `30^0` (C) `60^0` (D) `90^0`

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

The angle between the plane 3x+4y=0 and z-axis is (A) 0^0 (B) 30^0 (C) 60^0 (D) 90^0

Angle between the line (x+1)/1=y/2=(z-1)/1 and a normal to plane x-y+z=0 is (A) 0^0 (B) 30^0 (C) 45^0 (D) 90^0

The angle between the lines 3x-y+5=0,x+3y-2=0 is

The angle between a line x=1,y=2 and y+1=0, z=0 is (A) 0^0 (B) 30^0 (C) 60^0 (D) 90^0

The angle between the planes 4x + 8y + z- 8 = 0 and y + z -4 = 0 is (A) 30 ° (B) 45 ° (C) 60 ° (D) 90 °

The angle between the lines 2x=3y=-z and 6x=-y=-4z is (A) 0^0 (B) 90^0 (C) 45^0 (D) 30^0

The angle between the lines sqrt(3)x-y-2=0 and x-sqrt(3)y+1=0 is