[" 15.Show that the lines "5x+3y=9,x=3y,2x=y,x+4y=2," taken in order,form a cyclic "],[" quadrilateral."]

Show that a cyclic quadrilateral is formed by the lines 5x+3y=9,x=3y,2x=y and x+4y+2=0 taken in order.Find the equation of the circumcircle.

Show that a cyclic quadrilateral is formed by the lines 5x+3y=9,x=3y ,2x=y and x+4y+2=0 taken in order. Find the equation of the circumcircle.

Show that a cyclic quadrilateral is formed by the lines 5x+3y=9,x=3y ,2x=y and x+4y+2=0 taken in order. Find the equation of the circumcircle.

Show that a cyclic quadrilateral is formed by the lines 5x+3y=9,x=3y ,2x=y and x+4y+2=0 taken in order. Find the equation of the circumcircle.

Show that the lines 2x + 5y = 1, x - 3y = 6 and x + 5y + 2 = 0 are concurrent.

Prove that the three lines 5x+3y-7=0, 3x-4y=10, and x+2y=0 meet in a point.

Determine the nature of the quadrilateral formed by four lines 3x+4y-5=0,4x-3y-5=0;3x+4y-5=0 and 4x-3y+5=0 Find the equation of the circle insc quadrilateral inscribed and circumscribing this quadrilateral.

Show that the lines 2x + 3y - 8 = 0 , x - 5y + 9 = 0 and 3x + 4y - 11 = 0 are concurrent.