" Find the obtuse angle between strength lines "9x+3y-4=0" and "2x+4y+5=0?

Find the obtuse angle between the straight lines 9x+3y-4=0 and 2x+4y+5=0 .

Find the obtuse angle between the straight lines 9x+3y-4=0 and 2x+4y+5=0 .

Find the bisector of the obtuse angle between the lines 12x+5y-4=0 and 3x+4y+7=0

Find the obtuse angle between the lines x-y+2=0 and (2-sqrt(3))x-y+1=0 .

Find the equation of bisector of the obtuse angle between the lines x+y-5=0 and x-7y+7=0

Find the obtuse angle between the lines x-2y+3=0\ a n d\ 3x+y-1=0.

Find the obtuse angle between the lines x-2y+3=0\ a n d\ 3x+y-1=0.

Find the equation of the bisector of the obtuse angle between the lines 3x-4y+7=0 and 12x+5y-2=0

Find the equation-of the bisector of the obtused angle between the straight lines x-2y+4=0 and 4x-3y+2=0.