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Math4Life

Evaluate the infinte geometric series.

  • one year ago
  • one year ago

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  1. Math4Life
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    \[\sum_{n=1}^{\infty} (-1/2 )^{n-2}\]

    • one year ago
  2. Ket-kat
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    Okay, this is an infinite solution since the top is your upper limit and the bottom is the lower limit

    • one year ago
  3. Ket-kat
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    so, -1/2^1-2 and so on - all the way to infinity - is going to be your answer

    • one year ago
  4. Math4Life
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    \[\sum_{n=1}^{\infty} 3(0.4)^{n-1}\]

    • one year ago
  5. Math4Life
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    that also and thanks keep explaining

    • one year ago
  6. Math4Life
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    1. -1/2^1-2 all the way to infinity (my answer for number 1?)

    • one year ago
  7. Ket-kat
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    Same thing for this equation. Replace the n with the lower limit (1) all the way to infinity. You don't have to show the work up to infinity, just lead up to it

    • one year ago
  8. Math4Life
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    @Ket-kat so what would that be for number 2?

    • one year ago
  9. Ket-kat
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    ?

    • one year ago
  10. Math4Life
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    @Ket-kat whats the answer for 1 and 2, i'm confused.

    • one year ago
  11. 15Trev
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    hate that stuff

    • one year ago
  12. Math4Life
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    @15Trev can you still help me though?

    • one year ago
  13. Ket-kat
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    Okay Like I said. In both equations on the left side of the stigma, replace the n with: 1,2,3,4,5,6,7,8,9,10.......... infinity And solve the equations :)

    • one year ago
  14. 15Trev
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    i think so

    • one year ago
  15. Math4Life
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    Thanks

    • one year ago
  16. Ket-kat
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    <3 No worries

    • one year ago
  17. 15Trev
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    we did this last chapter

    • one year ago
  18. Ket-kat
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    FLVS? I'm doing it now xD

    • one year ago
  19. Math4Life
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    Nice so its fresh for you

    • one year ago
  20. 15Trev
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    k

    • one year ago
  21. 15Trev
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    so first u have to know that whats in parenths is ur rate

    • one year ago
  22. 15Trev
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    multiply parenths by # next to them

    • one year ago
  23. Math4Life
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    1. \[\sum_{n=1}^{\infty} (-1/2)^{n-1}\] 2. \[\sum_{n=1}^{\infty} 3(0.4)^{n-1}\]

    • one year ago
  24. 15Trev
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    like 3x.4

    • one year ago
  25. Math4Life
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    =12

    • one year ago
  26. 15Trev
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    no

    • one year ago
  27. 15Trev
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    .4

    • one year ago
  28. Math4Life
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    3x.4= 1.2 my bad

    • one year ago
  29. 15Trev
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    ya

    • one year ago
  30. 15Trev
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    now take 1 and subtract by # in ( )

    • one year ago
  31. 15Trev
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    like 1-.4

    • one year ago
  32. Math4Life
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    .6

    • one year ago
  33. 15Trev
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    forget everythng i said

    • one year ago
  34. Math4Life
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    *easily erases everything you said from brain*

    • one year ago
  35. Math4Life
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    @15Trev soooooo...?

    • one year ago
  36. 15Trev
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    wait

    • one year ago
  37. 15Trev
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    k lets do #2

    • one year ago
  38. Math4Life
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    What about 1?

    • one year ago
  39. 15Trev
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    later

    • one year ago
  40. Math4Life
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    ok

    • one year ago
  41. 15Trev
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    remember everything i siad erlier actualy

    • one year ago
  42. Math4Life
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    WTF.. ok lol :)

    • one year ago
  43. saifoo.khan
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    wtf = wow, that's fantastic.

    • one year ago
  44. Math4Life
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    @saifoo.khan exactly

    • one year ago
  45. saifoo.khan
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    Totally.

    • one year ago
  46. 15Trev
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    u can leave now

    • one year ago
  47. 15Trev
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    wats 1-.4

    • one year ago
  48. Math4Life
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    .6

    • one year ago
  49. Math4Life
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    @15Trev its .6

    • one year ago
  50. 15Trev
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    just get someone else to do it

    • one year ago
  51. 15Trev
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    i forget

    • one year ago
  52. Math4Life
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    @15trev nobody else is helping

    • one year ago
  53. 15Trev
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    well if i brought home my book i would know

    • one year ago
  54. 15Trev
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    do u hav the formula

    • one year ago
  55. Math4Life
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    No :/

    • one year ago
  56. Math4Life
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    @15Trev i just turned it in without those answers :/

    • one year ago
  57. 15Trev
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    what do u mean

    • one year ago
  58. 15Trev
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    i goota take a poop brb

    • one year ago
  59. Math4Life
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    @15Trev nvm just ill send u a link to my new question

    • one year ago
  60. 15Trev
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    k

    • one year ago
  61. Math4Life
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    @15Trev can u oovoo?

    • one year ago
  62. 15Trev
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    not now

    • one year ago
  63. Math4Life
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    @15Trev why?

    • one year ago
  64. 15Trev
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    the person im babysitting is right here

    • one year ago
  65. 15Trev
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    post link to new q

    • one year ago
  66. Math4Life
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    @15Trev ur not babysitting ur bro? and im in the middle of posting it

    • one year ago
  67. 15Trev
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    no

    • one year ago
  68. 15Trev
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    nabor

    • one year ago
  69. 15Trev
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    she likes minecraft

    • one year ago
  70. 15Trev
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    lol

    • one year ago
  71. Math4Life
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    @15Trev lol to bad both servers we like r down

    • one year ago
  72. 15Trev
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    ya

    • one year ago
  73. Math4Life
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    @15Trev so when r u done babysittin?

    • one year ago
  74. 15Trev
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    730

    • one year ago
  75. Math4Life
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    @15Trev I gotta mow the lawn, so later we can oovoo

    • one year ago
  76. 15Trev
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    k just finished babysittin

    • one year ago
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