Find the angle between the straight lines joining the origin to the point of intersection of `3x^2+5x y-3y^2+2x+3y=0` and `3x-2y=1`

Find the angle between the straight lines joining the origin to the point of intersection of 3x^(2)+5xy-3y^(2)+2x+3y=0 and 3x-2y=1

The angle between the straight lines joining the origin to the point of intersection of 3x^(2)+5xy-3y^(2)+2x+3y=0 and 3x-2y=1 , is

Find the angle between the straight lines joining the origin to the point of intersection of x^2+2x y+3y^2+4x+8y-11=0 and 3x-y=-2

Prove that the straight lines joining the origin to the points of intersection of 3x^(2)+5xy-3y^(2)+2x+3y=0 " and " 3x-2y-1=0 are at right angles.

Find the angle between the lines joining the origin to the points of intersection of the curve x^2+2xy+y^2+2x+2y-5=0 and the line 3x-y+1=0.

The equation of the straight line joining the origin to the point of intersection of y-x+7=0 and y+2x-2=0 is

The equation of the straight line joining the origin to the point of intersection of y-x+7 =0 and y +2x-2=0 is