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Mathematics
Mathematics
Problem
The coordinates of the centre of a circle are
(
2
a
,
a
−
7
)
(2a, a - 7)
(
2
a
,
a
−
7
)
. Find the value(s) of 'a' if the circle passes through the point
(
11
,
−
9
)
(11, -9)
(
11
,
−
9
)
and has diameter
10
2
10\sqrt{2}
10
2
units.
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