Find the acute angle between lines `x + y = 0` and `y = 0`

Find the acute angle between the lines x=y: z=0 and x=0z=0

Find the acute angle between the lines x - sqrt3 y = 1 and sqrt3 x -y = 4

Find the acute angle between the lines 7x-4y =0 and 3x-11y +2=0.

Find the equations of the bisector of the acute angle between the lines 3x + 4y + 2 = 0 and 5x + 12y - 5 = 0 .

Select and write the correct answer from the given alternatives in each of the following:The acute angle between the lines x-y=0 and y=0 is

Find the acute angle between the lines 2x-y+3=0\ a n d\ x+y+2=0.

Find the acute angle between the lines 2x-y+3=0\ a n d\ x+y+2=0.