Let g(x) be the right side of a heterogeneous ODE. Why do we take the derivative of g(x) when using the method of undetermined coefficients? This is to guess the form of the particular solution.(adsbygoogle = window.adsbygoogle || []).push({});

The textbook says to assume the particular solutions includes both the terms of g(x) and their derivatives but doesn't answer why.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Why do we take the derivative of g(x) when using the method of

**Physics Forums | Science Articles, Homework Help, Discussion**