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Two straight lines rotate about two fixe...

Two straight lines rotate about two fixed points (-a, 0) and (a, 0) in antic clockwise direction. If they start from their position of coincidence such that one rotates at a rate double of the other, then locus of curve is

A

circle

B

straight line

C

parabola

D

ellipse

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The correct Answer is:
A
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FIITJEE-MATHEMATICS -PARAGRAPH BASED (MULTIPLE CHOICE)
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  3. Two straight lines rotate about two fixed points (-a, 0) and (a, 0) in...

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  4. Consider a point P on a parabola such that 2 of the normal drawn from ...

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  5. Consider a point P on a parabola such that 2 of the normal drawn from ...

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  6. Consider a point P on a parabola such that 2 of the normal drawn from ...

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  7. Let a hyperbola whose centre is at origin. A line x + y =2 thuches thi...

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  8. Let a hyperbola whose centre is at origin. A line x + y =2 thuches thi...

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  9. Let a hyperbola whose centre is at origin. A line x + y =2 thuches thi...

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  10. Let P be a point in the plane of Delta ABC such that the triangles PAB...

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  11. Let P be a point in the plane of Delta ABC such that the triangles PAB...

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  12. Let P be a point in the plane of Delta ABC such that the triangles PAB...

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  13. A circle C whose radius is 1 unit, thuches the x-axis at point A. The ...

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  14. A circle C whose radius is 1 unit, thuches the x-axis at point A. The ...

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  15. A circle C whose radius is 1 unit, thuches the x-axis at point A. The ...

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  16. Pedal Triangle of a Triangle: Let Delta ABC be any triangle and let D,...

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  17. Consider a three dimensional Cartesian system with origin at O and thr...

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  18. Consider a three dimensional Cartesian system with origin at O and thr...

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  19. Consider a three dimensional Cartesian system with origin at O and thr...

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  20. For each positve real number k, let C (k) denotes the circle with cent...

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