This question seems a little silly, because it looks so simple(adsbygoogle = window.adsbygoogle || []).push({});

but

There's one thing I don't understand:

If y`` +p(x)y` + q(x)y=0 ...equation 1.

and you have this equation:

u``y1 + u`(2y`1+py1) + u(y``1+py`1+qy1)=0 ....equation 2

and y1 is a solution of equation 1

then why is "u" gone in equation 1?

:P

**Physics Forums - The Fusion of Science and Community**

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

# Seems a little silly

Loading...

Similar Threads - Seems little silly | Date |
---|---|

B The definition of a straight-line seems circular? | May 21, 2017 |

I How to motivate the study of Fermat's Little Theorem | Apr 23, 2017 |

Rearranging Equations where the term seems to cancel? | Dec 6, 2015 |

A seemingly simple linear algebra equation that eludes me | Nov 14, 2015 |

Similarity Transformation Doesn't seem to work | Dec 6, 2014 |

**Physics Forums - The Fusion of Science and Community**