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The angle between the tangents drawn fro...

The angle between the tangents drawn from the origin to the parabola `y^2=4a(x-a)` is

A

`90^@`

B

`45^@`

C

`60^@`

D

`30^@` .

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MODERN PUBLICATION-CONIC SECTIONS-EXERCISE
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  5. The centres of 3 circles x^2+y^2 =1, x^2+y^2 +6x-2y=1, x^2+y^2-12x+4y=...

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  7. The equation of the circle, while touches the line x= y at origin and ...

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  9. The locus of the mid-points of a chord of the circle x^(2)+y^(2)=4 whi...

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  10. The length of the chord joining the points (4 cos theta 4 sin theta) a...

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

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

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

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

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

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

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

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

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

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

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