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lilfayfay Group Title

Consider the curve defied by the equation y+cosy = x +1 for 0< or to equal y < or to equal 2pi

  • one year ago
  • one year ago

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  1. lilfayfay Group Title
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    @Goten77

    • one year ago
  2. Goten77 Group Title
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    hmm

    • one year ago
  3. Umangiasd Group Title
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    Okay, i considered it, now what?

    • one year ago
  4. lilfayfay Group Title
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    a.) Find dy/dx in terms of y. b.) Write an equation for each vertical tangent to the curve c.) Find d^2y/dx^2 in terms of y.

    • one year ago
  5. lilfayfay Group Title
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    wouldn't be like this? |dw:1358131334593:dw|

    • one year ago
  6. lilfayfay Group Title
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    sorry about my bad handwriting my hands are cold :P

    • one year ago
  7. Goten77 Group Title
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    no it wont be like that cause you with with respect to Y

    • one year ago
  8. lilfayfay Group Title
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    ok so part a.) is just 1-siny=x'

    • one year ago
  9. dumbcow Group Title
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    they are looking for dy/dx or y' derivative wrt x BUT in terms of y

    • one year ago
  10. Goten77 Group Title
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    oh derp.... i did it wrong

    • one year ago
  11. lilfayfay Group Title
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    lol

    • one year ago
  12. lilfayfay Group Title
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    so was my technique correct? :D

    • one year ago
  13. Goten77 Group Title
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    |dw:1358139066897:dw|

    • one year ago
  14. Goten77 Group Title
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    k so y did it not show both images.... the 1st part wwas expanded 2nd part is simplified

    • one year ago
  15. lilfayfay Group Title
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    wait how did u get that?

    • one year ago
  16. Goten77 Group Title
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    |dw:1358139147928:dw|

    • one year ago
  17. Goten77 Group Title
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    this program some times deletes my images or it doesnt appear for whatever reason

    • one year ago
  18. lilfayfay Group Title
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    o.o

    • one year ago
  19. Goten77 Group Title
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    |dw:1358139329704:dw|

    • one year ago
  20. Goten77 Group Title
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    get it now?

    • one year ago
  21. lilfayfay Group Title
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    how does x cancel from the other side?

    • one year ago
  22. Goten77 Group Title
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    |dw:1358139425312:dw|

    • one year ago
  23. Goten77 Group Title
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    when/where did i cancel a x?

    • one year ago
  24. lilfayfay Group Title
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    from the right original side of equation (x+1)

    • one year ago
  25. dumbcow Group Title
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    btw here is graph of curve http://www.wolframalpha.com/input/?i=y+%2B+cos%28y%29+%3D+x%2B1+%2C+from+x%3D0+to+2pi%2C+from+y%3D0+to+2pi

    • one year ago
  26. lilfayfay Group Title
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    oh ok i think i see why u canceled the variables on the right side of the equation :)

    • one year ago
  27. lilfayfay Group Title
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    so 1/(1-siny) is part a.)?

    • one year ago
  28. Goten77 Group Title
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    the x didnt cancel the derivative of x+1 = just 1 since its wrt x

    • one year ago
  29. Goten77 Group Title
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    and yes thats your part a

    • one year ago
  30. lilfayfay Group Title
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    ok how do i do part b.)

    • one year ago
  31. Goten77 Group Title
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    hmm

    • one year ago
  32. Goten77 Group Title
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    so vertical asymptotes is what makes the bottom of a fraction = 0

    • one year ago
  33. Goten77 Group Title
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    |dw:1358140100389:dw|

    • one year ago
  34. Goten77 Group Title
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    but we need the vertical asymptote so we needa find the x value so we put the equation in the form of x = #

    • one year ago
  35. Goten77 Group Title
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    so now we use the original equation and use that y value to solve for the x

    • one year ago
  36. lilfayfay Group Title
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    how did u get 1=siny

    • one year ago
  37. Goten77 Group Title
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    |dw:1358140410824:dw|

    • one year ago
  38. Goten77 Group Title
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    so the vertical graph is x= (pi - 2)/ 2

    • one year ago
  39. Goten77 Group Title
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    i got 1=siny because it was 1st 1-siny= 0 i just moved it over

    • one year ago
  40. Goten77 Group Title
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    |dw:1358140649853:dw| sorry im bad at spelling

    • one year ago
  41. Goten77 Group Title
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    ok so part c is finding the 2nd derivative.... this will be fun

    • one year ago
  42. Goten77 Group Title
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    |dw:1358140714426:dw|

    • one year ago
  43. lilfayfay Group Title
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    so part b.) is (pi -2)/2

    • one year ago
  44. Goten77 Group Title
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    |dw:1358140838951:dw|

    • one year ago
  45. Goten77 Group Title
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    |dw:1358140982676:dw|

    • one year ago
  46. Goten77 Group Title
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    this is basically the quotient rule + implicint differentation + production rule + chain rule THEN use that negative .... you dont have to simplify unless ur told to.. which i dont think u can

    • one year ago
  47. lilfayfay Group Title
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    so cosy/(1-siny)^2 is the answer? :)

    • one year ago
  48. Goten77 Group Title
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    yee

    • one year ago
  49. lilfayfay Group Title
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    k, ty ^^

    • one year ago
  50. lilfayfay Group Title
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    can you help me with 1 more pls? :)

    • one year ago
  51. Goten77 Group Title
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    sure

    • one year ago
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