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Mathematics
Mathematics
Problem
The circles
x
2
+
y
2
−
10
x
+
16
=
0
x^2 + y^2 - 10x + 16 = 0
x
2
+
y
2
−
10
x
+
16
=
0
and
x
2
+
y
2
=
r
2
x^2 + y^2 = r^2
x
2
+
y
2
=
r
2
intersect each other in two distinct points if a.
r
<
2
r < 2
r
<
2
b.
r
>
8
r > 8
r
>
8
c.
2
<
r
<
8
2 < r < 8
2
<
r
<
8
d.
2
≤
r
≤
8
2 \le r \le 8
2
≤
r
≤
8
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