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JEE Advanced Model Paper 13 with solutions for online practice
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Question : 50
Total: 60
Consider the circle
C
1
:
x
2
+
y
2
= 4 and the circle
C
2
:
x
2
+
y
2
- 6x - 8y - 24 = 0 . Then which is/are correct
C
1
and
C
2
touch each other
C
1
completely lies within
C
2
without a common point
C
1
and
C
2
touch each other externally
the number of common tangents of
C
1
and
C
2
is one
Validate
Solution:
d =
|
r
1
−
r
2
|
shows that curves touch internally
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