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Nitesh Kaushal

· started a discussion

· 1 Months ago

Wrong answer. (Question: 113541.0 )

general equation of a circle is:
x^2 + y^2 +2gx + 2fy + c = 0 (center of the circle -> (-g,-f) )
and it is given that the circle passes through (0,0) and (1,0)
By solving we get g= -1/2
==> hence, the x coordinate of the circle would be 1/2 which only option 'b' satifies.

Do reply and correct your answer @Toprankers

Question:

The centre of the circle passing through the points (0, 0), (1, 0) and touching the circle x2 + y2 = 9 is:

Options:
A) \(\left ( \cfrac {3}{2},\cfrac{1}{2} \right )\)
B) \(\left ( \cfrac {1}{2},\cfrac{1}{2} \right )\)
C) \(\left ( -\cfrac {1}{\sqrt[]{2}},\cfrac{1}{2} \right )\)
D)
Solution:
Ans: (d)

     

satish narayan chaudhary

· commented

· 1 Months ago

what to take c?

Ambarish Gupta

· commented

· 1 Months ago

dude! same i did ...

Gaurav Bhardwaj

· commented

· 1 Months ago

That is how I did it too bro
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