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    I really need help with finding the first and second derivative of 10sin^-1 2x ... I have a few more and similar questions... since this is my first time here I will start with just this one and see if anyone will actually help. Thank you!
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    (Original post by sammyrama)
    I really need help with finding the first and second derivative of 10sin^-1 2x ... I have a few more and similar questions... since this is my first time here I will start with just this one and see if anyone will actually help. Thank you!
    What have you tried
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    What do you mean?
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    (Original post by sammyrama)
    What do you mean?
    Have you already covered the first derivative of sin^{-1} x in class or in your textbook?

    You just need a straightforward application of the chain rule applied to your original function once you know this.
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    Yes I did but the course im doing covers everything in like one lesson when this topic (calculus) needs loads of lessons. I didnt say this my teacher did... I would love if someone could help out quick! As I can then try take a few minutes to understand it.
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    (Original post by sammyrama)
    Yes I did but the course im doing covers everything in like one lesson when this topic (calculus) needs loads of lessons. I didnt say this my teacher did... I would love if someone could help out quick! As I can then try take a few minutes to understand it.
    What have you tried i.e. can you show your working so far?
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    (Original post by sammyrama)
    Yes I did but the course im doing covers everything in like one lesson when this topic (calculus) needs loads of lessons. I didnt say this my teacher did... I would love if someone could help out quick! As I can then try take a few minutes to understand it.
    You don't need "loads of lessons", but you need to be prepared to do loads of practice - or at least sufficient to be confident using the methods.

    Can you tell us what the derivative of sin^{-1} x with respect to x is?

    Do you know the chain rule? Can you write down what it says? Can you show us how you would apply the chain rule in this case?
 
 
 
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Updated: January 11, 2015
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