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how do you differentiate and rearrange these? Watch

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    what does it mean when a line stops at the x axis?


    how do you differentiate: f(x)=In(cos(sin(x))-sin(cos(In x))?

    how would i find the root of f(x)=x-cos(x). would it be decimal search, Newton-Raphson and rearrangement method?
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    (Original post by esmeralda123)
    what does it mean when a line stops at the x axis?


    how do you differentiate: f(x)=In(cos(sin(x))-sin(cos(In x))?

    how would i find the root of f(x)=x-cos(x). would it be decimal search, Newton-Raphson and rearrangement method?
    1. Well, dunno, it just means that it doesn't cross the x-axis

    2. Use substitution twice. First let u=\cos(\sin(x)) and v=\cos(\ln(x)) and get the first part in u and v, then use the substitution p=\sin(x) and q=\ln(x) to differentiate u and v

    3. Whichever one, they all approximate it.
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    (Original post by esmeralda123)

    how do you differentiate: f(x)=In(cos(sin(x))-sin(cos(In x))?
    You are missing a close bracket in that expression, which will affect how we solve it.

    Put it in and we can give you the answer.
 
 
 
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