B)gThe tangent to the circle x2 + y2 - 5 at the point (1, -2) also tou

1.	B)gThe tangent to the circle x2 + y2 - 5 at the point (1, -2) also touches the circle(A) (2, 1) +6y + 20=(B)( 3,0)8.a(C)F1-1)(D) (3,-1)
Answer» For the circle x²+ y² = 5,the equation of tangent at (1,-2) is x-2y=5 Solving for x and y from the equation of tangent and the second circle,we get x=3 and y=-1so the point is (3,-1)

B)gThe tangent to the circle x2 + y2 - 5 at the point (1, -2) also touches the circle(A) (2, 1) +6y + 20=(B)( 3,0)8.a(C)F1-1)(D) (3,-1)

Answer»

For the circle x²+ y² = 5,the equation of tangent at (1,-2) is x-2y=5

Solving for x and y from the equation of tangent and the second circle,we get x=3 and y=-1so the point is (3,-1)