A circle passes through the points and touches the -axis at . If is maximum then |
|||||||

a) |
b) |
c) |
d) |

A circle passes through the points and touches the -axis at . If is maximum then |
|||||||

a) |
b) |
c) |
d) |

1 Answer - 5876 Votes

3537

**(c)**

Equation of any circles passing through (1, 0) and (5, 0) is

i.e.

If is maximum, then this circle must touch the -axis at . Putting in the equation of circle, we get . It should have as it is a repeated root

and