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Thread: Differential equation

  1. #1 Differential equation 
    Forum Ph.D. Heinsbergrelatz's Avatar
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    can anyone try to define this prove this equation?

    for all values of x

    when;


    the working is kind of tedious, so i might've made a mistake, which might be the reason why i cant retrieve at the correct answer.


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  3. #2  
    Forum Professor river_rat's Avatar
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    Massive hint -> Look up Chebyshev polynomials of the first kind


    As is often the case with technical subjects we are presented with an unfortunate choice: an explanation that is accurate but incomprehensible, or comprehensible but wrong.
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