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प्रश्न
(1, -2) is the centre of the circle x2 + y2 + ax + by – 4 = 0, then its radius:
पर्याय
3
2
4
1
उत्तर
3
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संबंधित प्रश्न
Find the equation of the following circles having the centre (3, 5) and radius 5 units.
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Choose the correct alternative:
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