Find a positive value of \(\alpha\) if the coordinate of the centre of a circle...
MATHEMATICS
JAMB 1999
Find a positive value of \(\alpha\) if the coordinate of the centre of a circle x\(^2\) + y\(^2\) - 2\(\alpha\)x + 4y - \(\alpha\) = 0 is (\(\alpha\), -2) and the radius is 4 units.
- A. 1
- B. 2
- C. 3
- D. 4
Correct Answer: C. 3
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