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Mathematics
Mathematics
Problem
- If the tangent at the point
P
P
P
on the circle
x
2
+
y
2
+
6
x
+
6
y
=
2
x^2 + y^2 + 6x + 6y = 2
x
2
+
y
2
+
6
x
+
6
y
=
2
meets the straight line
5
x
−
2
y
+
6
=
0
5x - 2y + 6 = 0
5
x
−
2
y
+
6
=
0
at a point
Q
Q
Q
on the
Y
Y
Y
-axis, then the length
P
Q
PQ
P
Q
is a. 4 b.
2
5
2\sqrt{5}
2
5
c. 5 d.
3
5
3\sqrt{5}
3
5
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