Как да помогнем?

Fred Vaughan

Fred Vaughan коментира, 23 ноември, 2016 05:30
There is a constant before the final term.
Fred Vaughan създаде постинг, 23 ноември, 2016 05:29
What is the solution of a particular second order.differential equation?
С отговор

What is the solution of the second order DE: d/dx(x^2 d/dx (Q(x))) = d/dx(Q(x) + Q(x)
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