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The equation x^(2)+y^(2)+4x+6y+13=0 rep...

The equation `x^(2)+y^(2)+4x+6y+13=0` represents

A

circle

B

pair of coincident straight lines

C

pair of concurrent straight lines

D

point circle

Text Solution

Verified by Experts

The correct Answer is:
D
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TARGET PUBLICATION-CIRCLE AND CONICS -COMPETITIVE THINKING
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  4. Equation of circle with centre (-a,-b) and radius sqrt(a^(2)-b^(2)) is

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  12. If the line x+2b y+7=0 is a diameter of the circle x^2+y^2-6x+2y=0 , t...

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  13. If one of the diameters of the curve ""^(2) + y ^(2) - 4x - 6y +9=0 is...

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