A rectangular fin is exposed to hot air at its tip at x=L. The heat transfer from the air through the fin can be modeled with the following equation: dxdqxhP(TT)=0 where P is periphery, h is heat transfer coefficient. The other tip of the fin at x=0 is maintained at constant temperature (To). Using new variables =T0TTT=Lx a) Define the BCs. b) Rewrite the model equation and BCs in terms of new variables (dimensionless form). c) Solve the dimensionless model equation analytically using the corresponding BCs