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The equation of auxiliary circle of the ...

The equation of auxiliary circle of the hyperbola `(x^(2))/(4)-(y^(2))/(9)=1` is

A

`x^(2)+y^(2)=4`

B

`x^(2)+y^(2)=9`

C

`x^(2)+y^(2)=13`

D

`x^(2)+y^(2)=5`

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The correct Answer is:
A
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  3. The equation of auxiliary circle of the hyperbola (x^(2))/(4)-(y^(2))/...

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  5. Let P be a variable point on the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2...

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  8. The normal at a point P on the ellipse x^(2)+4y^(2)=16 meets the x-axi...

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  9. The line passing through the extremity A of the major axis and extremi...

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  10. A focus of an ellipse is at the origin. The directrix is the line x=4 ...

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  11. The ellipse x^(2)+4 y^(2)=4 is inscribed in a rectangle aligned with c...

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  12. Equation of the ellipse whose axes are the axes of co-ordinates and wh...

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  13. The foci of the ellipse 25(x+1)^(2)+9(y+2)^(2)=225 are at

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