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1. |
Find the equation of the circle which passes through (-1, 1) and (2, 1), and having centre on the line x + 2y + 3 = 0. |
A. | 2x2 + 2y2 - 2x + 7y - 13 = 0 |
B. | x2 + y2 - 2x + 7y - 13 = 0 |
C. | 2x2 + 2y2 + 2x + 7y - 13 = 0 |
D. | x2 + y2 + 2x + 7y - 13 = 0 |
Answer» B. x2 + y2 - 2x + 7y - 13 = 0 | |