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The number of common tangents to the cir...

The number of common tangents to the circles `x^2+y^2-y=0` and `x^2+y^2+y=0` is :

A

0

B

1

C

2

D

3

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MODERN PUBLICATION-CONIC SECTIONS-EXERCISE
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  2. The length of the chord joining the points (4 cos theta 4 sin theta) a...

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  3. The number of common tangents to the circles x^2+y^2-y=0 and x^2+y^2+y...

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  4. The co-ordinates of the centre of the smallest circle passing through ...

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  5. The length of the diameter of the circle which cuts three circles : x^...

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  6. For the parabola y^2 = 4x, the point P whose focal distance is 17, is ...

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  7. The angle between the tangents drawn from origin to the parabola y^2= ...

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  8. The number of values of c such that the straight line y=4x+c touches t...

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  9. If the circle x^2+y^2=a^2 intersects the hyperbola x y=C^2 at four poi...

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  10. The foot of the perpendicular from the point (2, 4) upon x + y= 4 is:

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  11. The vertices of a triangle are (6, 0), (0, 6) and (6, 6). Then distanc...

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  12. The angle between the pair of lines : x^2+2xy-y^2=0 is :

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  13. In an ellipse, if the lines joining focus to the extremities of the mi...

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  14. If a hyperbola passes through the foci of the ellipse x^2/25+ y^2/16=1...

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  15. The curve described parametrically by x=t^2+t and y=t^2-t represents :

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  16. If P is a point (x,y) on the line y=-3x such that P and the point (3,4...

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  17. A variable line through the point (1/5,1/5) cuts the coordinate axes i...

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  18. Find the equation of the circle which cuts orthogonally the circle x^(...

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  19. If the slope of one of the lines represented by ax^2+2hxy+ by^2 =0 be ...

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  20. If, in a hyperbola, the distance between the foci is 10 and the transv...

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