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Please get me the proof of this question plsssssssssssssssdssssssssssssssss

Please get me the proof of this question plsssssssssssssssdssssssssssssssss

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1 Answers

Arun
25763 Points
3 years ago
Dear Pavan
Here is another proof
 
A = (0, 0)
B = (0, a)
D = (a, 0)
Now
Equation of circle is 
x² + y² + 2gx + 2 fy +c = 0
Passes tgrough A, B, D
Then
f = -a/2
g = -a/2
 
Required eqn of circle is
x² + y² -ax -ay = 0
Which passes through (a, a) i. e. Point C.
 
Hence A, B, C, D are concyclic.
 
Regards
Arun (askIITians forum expert)

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