Categories > circle > Equations of circle > Let $P({{x}_{1}},{{y}_{1}})$ and $Q({{x}_{2}},{{y}_{2}})$ are two points such that their abscissa ${{x}_{1}}$ and ${{x}_{2}}$ are the roots of the equation ${{x}^{2}}+2x-3=0$ while the ordinates ${{y}_{1}}$ and ${{y}_{2}}$ are the roots of the equation ${{y}^{2}}+4y-12=0$ . The centre of the circle with PQ as diameter is

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Question: Let $P({{x}_{1}},{{y}_{1}})$ and $Q({{x}_{2}},{{y}_{2}})$ are two points such that their abscissa ${{x}_{1}}$ and ${{x}_{2}}$ are the roots of the equation ${{x}^{2}}+2x-3=0$ while the ordinates ${{y}_{1}}$ and ${{y}_{2}}$ are the roots of the equation ${{y}^{2}}+4y-12=0$ . The centre of the circle with PQ as diameter is


1) $(-1,-2)$
2) $(1,\,\,2)$
3) $(1,-2)$
4) $(-1,2)$
Solution: Explanation: No Explanation
Equations of circle Geometrical problems regarding circle

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