[" The circles which can be drawn to pass through "],[(1,0)" and "(3,0)" and to touch the "y" -axis intersect at "],[" an angle "theta" .Then "cos theta" is equal to "]

The circles which can be drawn to pass through (3,0) and (5,0) and to touch the y-axis intersect at an angle theta , then costheta is equal to

The circle which can be drawn to pass through (1,0) and (3,0) and to touch the y-axis intersect at angle theta. Then cos theta is equal to (1)/(2) (b) -(1)/(2)( c) (1)/(4)(d)-(1)/(4)

The circle which can be drawn to pass through (1, 0) and (3, 0) and to touch the y-axis intersect at angle thetadot Then costheta is equal to (a) 1/2 (b) -1/2 (c) 1/4 (d) -1/4

The circle which can be drawn to pass through (1, 0) and (3, 0) and to touch the y-axis intersect at angle thetadot Then costheta is equal to (a) 1/2 (b) -1/2 (c) 1/4 (d) -1/4

The circle which can be drawn to pass through (1, 0) and (3, 0) and to touch the y-axis intersect at angle thetadot Then costheta is equal to (a) 1/2 (b) -1/2 (c) 1/4 (d) -1/4

The two circles which passes through (0,a) and (0,-a) and touch the line y = mx+c will intersect each other at right angle ,if

The two circles which pass through (0,a)a n d(0,-a) and touch the line y=m x+c will intersect each other at right angle if

Radius of the circle that can be drawn to pass through the points (0,7)(0,6) and touching the x -axis is K then (14K)/(13) is

Two circles are drawn through the points (a,5a) and (4a, a) to touch the y-axis. Prove that they intersect at angle tan^-1(40/9).