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Tardigrade
Question
Mathematics
The radius of the circle in which the sphere x2 + y2 + z2 + 2x − 2y − 4z − 19 = 0 is cut by the plane x + 2y + 2z + 7 = 0 is
Q. The radius of the circle in which the sphere
x
2
+
y
2
+
z
2
+
2
x
−
2
y
−
4
z
−
19
=
0
is cut by the plane
x
+
2
y
+
2
z
+
7
=
0
is
1569
254
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A
1
B
2
C
3
D
4
Solution:
Correct answer is (c)
3
