Need a little help on the integration

1. The problem statement, all variables and given/known data
I need to integrate this...

The question asks to solve the equation given the boundary conditions

2. Relevant equations
I need to integrate


with respect to r. This term plus a constant term equals to zero. I have two boundary conditions: T(R) = Ts and T(0) is finite

R is a particular r, and Ts is a number

3. The attempt at a solution
Not sure how to start this integration..


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