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From a point (sintheta,costheta), if thr...

From a point `(sintheta,costheta)`, if three normals can be drawn to the parabola `y^(2)=4ax` then the value of a is

A

`(1/2,1)`

B

`[-1/2,0)`

C

`[1/2,1]`

D

`(-1/2,0)cup(0,1/2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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  11. C is the centre of the circle with centre (0,1) and radius unity. y=ax...

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  12. Let S be the focus of y^2=4x and a point P be moving on the curve such...

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  13. If P be a point on the parabola y^2=3(2x-3) and M is the foot of perpe...

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  14. Consider the parabola y^2=4xdot Let A-=(4,-4) and B-=(9,6) be two fixe...

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  15. Through the vertex O of the parabola y^2=4a x , two chords O Pa n dO Q...

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  16. A B is a double ordinate of the parabola y^2=4a xdot Tangents drawn to...

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