Recent content by ywel84

For first exercise: Homework Statement (a) Prove that: {1 \over r}(rV)''=V''+(2/r)V' (b) Use equation from (a) to solve: u''+{2 \over r}u'=1, where 1<r<2, u(1)=1, u(2)=2 Homework Equations //I don't understand this r'=1 r''=0 The Attempt at a Solution I made somthing...

Hello! My English is poor because I'm from Poland. I have 3 exercises from subject called: Mathematical Method In Physics. Would you be so kind and help me to solve this: 1. (a) Prove that: {1 \over r}(rV)''=V''+(2/r)V' (that was easy, but next point (b) is not) (b) Use equation from...