Download the app

Questions  

For all values of a, equation of a diameter  

of the circle  x2+y22ax+2ay+a2=0 is 

a
x+y=a
b
x−y=a
c
x+y=2a
d
x−y=2a

detailed solution

Correct option is D

Centre of the circle is (a, – a)  and the line x – y = 2a passes through it. So it is a diameter of the given circle.

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

The lines y=x+2  and y=x22  are the tangents of certain circle. If the point (0,2)  lies on the circle then it’s equation is


phone icon
whats app icon