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klllerbee

what is the derivative of 7arcsin(10x^2+15x-9)

  • 11 months ago
  • 11 months ago

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  1. primeralph
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    differentiate the stuff inside the arcsin, then multiply that by 7/sqrt(1-(stuff inside arcsin)^2)

    • 11 months ago
  2. RolyPoly
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    Let \[y=7sin^{-1}(10x^2+15x-9)\] \[\frac{y}{7}=sin^{-1}(10x^2+15x-9)\]\[sin(\frac{y}{7})=(10x^2+15x-9)\]Differentiate both sides with respect to x.

    • 11 months ago
  3. klllerbee
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    @_@ i don't see any of those answers as a choice.

    • 11 months ago
  4. zepdrix
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    lol he didn't give you the answer, he was giving you a way to solve the problem -_-

    • 11 months ago
  5. zepdrix
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    To start, do you know this derivative?\[\large y=\arcsin x \qquad \qquad y'=?\]

    • 11 months ago
  6. klllerbee
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    differentiate the stuff inside the arcsin, then multiply that by 7/sqrt(1-(stuff inside arcsin)^2) i did this

    • 11 months ago
  7. klllerbee
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    i know it's something like 1/sqrt(1-u)^2

    • 11 months ago
  8. primeralph
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    |dw:1368923334862:dw|

    • 11 months ago
  9. primeralph
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    that's what I was saying

    • 11 months ago
  10. zepdrix
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    Yes that sounds right bee, \[\large y=\arcsin x \qquad \qquad y'=\frac{1}{\sqrt{1-x^2}}\]

    • 11 months ago
  11. klllerbee
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    • 11 months ago
  12. klllerbee
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    I did the thing he told me and none of those answers matched @_@

    • 11 months ago
  13. primeralph
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    @klllerbee look at my first post...............

    • 11 months ago
  14. klllerbee
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    I looked at your post, 7/sqrt(1-(stuff inside arcsin)^2) But the only one I see is 7/1+(10x^2+15x-9)^2 since it's a plus there i know i'm doing something wrong

    • 11 months ago
  15. primeralph
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    I said sqrt.....meaning square root

    • 11 months ago
  16. primeralph
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    sqrt(1-(stuff inside arcsin)^2)

    • 11 months ago
  17. klllerbee
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    \[7/\sqrt(1-(10x^2+15x-9))^2\]

    • 11 months ago
  18. klllerbee
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    ok, cool. Thanks guys

    • 11 months ago
  19. klllerbee
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    How do i give you metals for helping :D i'm new here

    • 11 months ago
  20. primeralph
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    no, that's not the final answer.......

    • 11 months ago
  21. primeralph
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    still got to multiply it by the derivative

    • 11 months ago
  22. klllerbee
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    oh so the final answer is 7x(20x+15)/sqrt(1-(10x^2+15x-9)^2

    • 11 months ago
  23. primeralph
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    yeah.....ze medal?

    • 11 months ago
  24. klllerbee
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    where is the metal button?

    • 11 months ago
  25. klllerbee
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    :( i don't know what i'm doing with this software

    • 11 months ago
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