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Problem
Problem
For the circle
x
2
+
y
2
=
r
2
x^2 + y^2 = r^2
x
2
+
y
2
=
r
2
, find the value of
r
r
r
for which the area enclosed by the tangents drawn from the point
P
(
6
,
8
)
P(6, 8)
P
(
6
,
8
)
to the circle and the chord of contact is maximum.
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