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NDA Math Circle
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© examsnet.com
Question : 11
Total: 26
The circle
x
2
+
y
2
+ 4x− 7y+ 12 = 0 , cuts an intercept on y-axis equal to
[NDA I 2019]
1
3
4
7
Validate
Solution:
(A)
y -intercept = 2
√
f
2
−
c
In given equation of circle f =
−
7
2
and c =12
y -intercept = 2
√
49
4
−
12
= 1
© examsnet.com
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