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Homework Help: Derivative of arcsin(x)

  1. Jan 26, 2009 #1
    1. The problem statement, all variables and given/known data
    What is the derivative of arcsin(4x+2)?

    2. Relevant equations

    3. The attempt at a solution
    I just want to check that I'm doing this correctly; my teacher didn't give me any examples to try.

    I get 4 / ([tex]\sqrt{1-(4x-2)^2}[/tex])

    Is that right?
    EDIT: Just realized I posted this in precal math, sorry!! =(
    Last edited: Jan 26, 2009
  2. jcsd
  3. Jan 26, 2009 #2


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    Why do you have (4x-2) in the radical? Typo, right? Otherwise, it's fine.
  4. Jan 27, 2009 #3
    Whoops, it's supposed to say 4x+2. It's still supposed to be in the radical, though.
  5. Jan 27, 2009 #4


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    Then it's just fine.
  6. Jan 27, 2009 #5
    If you just want to check your answer try:



    They'll give you an answer, don't be phased necessarily if they are not quite the same, often there are more than one possible answer or method, or they may have simplified it further than you.
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