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If m(1) and m(2) are slopes of the two t...

If `m_(1)` and `m_(2)` are slopes of the two tangents that are drawn from (2,3) to the parabola `y^(2)=4 x`, then `(1)/(m_(1))+(1)/(m_(2))` is

A

3

B

-3

C

`(2)/(3)`

D

`(3)/(2)`

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The correct Answer is:
A
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HIMALAYA PUBLICATION-PARABOLA-QUESTION BANK
  1. The locus of the points which are equidistant from (-a, 0) and x=a

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  2. The vertex of the parabola y^(2)=4 a(x+a) is

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  3. If m(1) and m(2) are slopes of the two tangents that are drawn from (2...

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  4. The parabola (y+1)^(2)=a(x-2) passes through the point (1,-2) . The eq...

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  5. Two tangents are drawn from the point (-2,-1) to the parabola y^(2)=4 ...

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  6. The graph represented by the equations x=sin ^(2) t y=2 cos t is

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  7. If P S P^(prime) is a focal chord of the parabola y^(2)=4 a x and S L ...

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  8. The tangents at the points (a t(1)^(2), 2 a t(1)), (a t(2)^(2), 2 a t(...

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  9. Axis of the parabola x^(2)-3 y-6 x+6=0 is

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  10. If x+y+1=0 touches the parabola y^(2)=lambda x then lambda=

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  11. The equation of the directrix to the parabola y^(2)-2 x-6 y-5=0 is

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  12. The vertex of the parabola x^(2)+12 x-9 y=0 is

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  13. The focus of the parabola y^(2)-4 y-8 x+4=0 is

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  14. If 2y = 5x + k is a tangent to the parabola y^(2) = 6x then k =

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  15. The line 4 x+6 y+9=0 touches the parabola y^(2)=4 x at the point

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  16. The vertex of the parabola x^(2)+8 x+12 y+4=0 is

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  17. If the normal to the parabola y^(2)=4 x at P(1,2) meets' the parabola ...

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  18. The length of the latus rectum of the parabola y^(2)+8 x-2 y+17=0 is

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  19. The equation of the parabola with the focus (3,0) and the directrix x+...

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  20. The equation of the parabola with focus (0,0) and directrix x+y=4 is

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