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Mathematics
Mathematics
Problem
The common chord of
x
2
+
y
2
−
4
x
−
4
y
=
0
x^2 + y^2 - 4x - 4y = 0
x
2
+
y
2
−
4
x
−
4
y
=
0
and
x
2
+
y
2
=
16
x^2 + y^2 = 16
x
2
+
y
2
=
16
subtends at the origin an angle equal to- (1)
π
/
6
\pi/6
π
/6
(2)
π
/
4
\pi/4
π
/4
(3)
π
/
3
\pi/3
π
/3
(4)
π
/
2
\pi/2
π
/2
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