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AP EAPCET 07-Jul-2022 Shift 2 Paper
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© examsnet.com
Question : 48
Total: 160
The ratio of the areas of the greatest and the smallest circles touching
(
x
±
1
)
2
+
(
y
±
1
)
2
=
1
is
√
3
+
1
√
3
−
1
3
+
√
2
3
−
√
2
3
+
2
√
2
3
−
2
√
2
4
Validate
Solution:
👈: Video Solution
Let radius of smaller circle be
r
and radius of bigger circle be
R
r
=
√
2
−
1
R
=
√
2
+
1
∴
Ratio of areas
=
(
√
2
+
1
)
2
(
√
2
−
1
)
2
=
3
+
2
√
2
3
−
2
√
2
.
© examsnet.com
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