pasmith's latest activity

This question seems poorly designed, in that part (i) has absolutely nothing to do with part (ii).

Thinking about it more closely, we want ##c_1y_1 + c_2y_2## to be a particular solution. But we're happy if it's only determined up to a...

I think you have an error in the algebra. Substituting the ansatz and condition into the ODE, we should find $$\begin{split}...

Any CAS which knows that for ##a \in \mathbb{R}##, ##(a^2)^{1/2} = |a|## should be able to get it right.

Based on the sketch, it seems that ##\theta## is the angle of cylindrical polar coordinates, not spherical polar coordinates. I agree...