I have this question that I am struggling to see if it is correct or not.

A quantity y(r) satisfies the first-order fifferential equation r^2*dy/dr = K where r > 0 and K is a constant.

The general solution I got from this FO differential equation is: y = K(-1/r + F)

The second part to this question is to find a particular solution for y(R) = 0, where R is a constant.

I seem to get 0 as R = 1/F which cancels out everything.

Much appreciated for anyone that can help.

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