Tell me the Ques 20

Tell me the Ques 20 tne crrc e cuts y-axis. Find the equation to the circle concentric with 12 + Y2 — 4 x — 6 y — 3 = O and which touches 1 1 20. 21. 22. the y-axis. Find the equ•ation to the circle which is concentric with x2 + Y2 —6x + 7 = 0 and touches the line x + y + 3 = O. Show that 3 x — 4 y + 11 = 0 is a tangent to the circle x2 + Y2 — 8y + 15 = 0 and find the quation of the other tangent which is parallel to the line 3x = 4 y. Find the equations of the tangents to the circle x2 + Y2 = 25 which are parallel to the line — 4y = 4 which are Find the equations of the tangents to the circle x2 + Y2 — 2 x perpendicular to the line 3x — 4 y — 1 = O. Find the equations of the tangents to the circle x2 + Y2 = 9 which make an angle of 600 with the positive direction of x-axis. Find the equations of tangents to the circle (i) x2+ Y2 + 2 x + 2 y = 7 inclined at an angle of 450 to the x-axis. (ii) x2 + — 2 x + 8 y — 23 = O having slope 3. • Find the equations of the tangents to the circle x2 + Y2 = 10 drawn from the point (4, -2). nts to the circle x2 + Y2 + 20x + 20y + 20 = O through the