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DLS

  • 3 years ago

The extremeties of the latus rectum of the parabola x^2+8y=0 are?

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  1. DLS
    • 3 years ago
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    @hartnn

  2. DLS
    • 3 years ago
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    |dw:1359552834648:dw| smt like this?

  3. DLS
    • 3 years ago
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    |dw:1359552864765:dw|

  4. DLS
    • 3 years ago
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    @sirm3d @experimentX @ujjwal

  5. DLS
    • 3 years ago
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    |dw:1359556893096:dw| A clear diagram perhaps,am i right?

  6. DLS
    • 3 years ago
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    And general equation would be \[\LARGE x^2=-4ay \]

  7. DLS
    • 3 years ago
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    \[\LARGE x^2=-12y\]

  8. DLS
    • 3 years ago
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    not sure what im doing :/

  9. experimentX
    • 3 years ago
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    find the focus first.

  10. DLS
    • 3 years ago
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    why locus?

  11. experimentX
    • 3 years ago
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    not locus ... focus.

  12. DLS
    • 3 years ago
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    oh sorry lol

  13. DLS
    • 3 years ago
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    focus is given (0,3) o.O

  14. DLS
    • 3 years ago
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    u drew it wrong..

  15. experimentX
    • 3 years ago
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    looks like here are couple of examples!! http://www.math-prof.com/Alg2/Alg2_Ch_40.asp

  16. DLS
    • 3 years ago
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    wth i was looking at the wrong Q sorry @experimentX @sirm3d ! i drew the wrong diagram from my attempts page XD

  17. sirm3d
    • 3 years ago
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    |dw:1359557441779:dw|

  18. DLS
    • 3 years ago
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    yeah,a=2

  19. DLS
    • 3 years ago
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    4,-4?

  20. sirm3d
    • 3 years ago
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    (-4,-2) and (4,-2)

  21. sirm3d
    • 3 years ago
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    |dw:1359557672691:dw|

  22. DLS
    • 3 years ago
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    i was telling just the x cods

  23. DLS
    • 3 years ago
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    yea

  24. sirm3d
    • 3 years ago
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    then you are right. the x-coord are \(\pm 4\)

  25. DLS
    • 3 years ago
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    thanks!!

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