Chapter 12: Q9-4P (page 562)
Expand the following functions in Legendre series.
Chapter 12: Q9-4P (page 562)
Expand the following functions in Legendre series.
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Get started for freeShow that dl-m/dxl-m (x2-1)l=(l-m)!/(l+m)! (x2-1)m dl+m/dxl+m (x2-1)l.
Hint: Write(x2-1)l=(x-1)l(x+1)land find the derivatives by Leibniz' rule.
Expand the following functions in Legendre series.
To show .
To show .
To study the approximations in the table, a computer plot on the same axes the given function together with its small x approximation and its asymptotic approximation. Use an interval large enough to show the asymptotic approximation agreeing with the function for large x. If the small x approximation is not clear, plot it alone with the function over a small interval
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