Key Points - University of Sheffield

After all, the method of undetermined coefficients is based on ‘guessing’ the right form for yp. The ‘guess’ is based on experience and comes down to a few rules: If k(x) is a polynomial of degree q, try. i.e. a polynomial of the same degree. 2. If k(x)=acosmx+bsinmx (including the cases when a=0 or b=0), try ................
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