Find a positive value of if the coordinate of t... - JAMB Mathematics 1999 Question
Find a positive value of ã if the coordinate of the centre of a circle X2+y2-2ãx+4y-ã = 0 is (ã,-2) and the radius is 4 units.
A
1
B
2
C
3
D
4
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Correct Option: C
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