Repeat Problem 3.31 if the temperature distribution on the top surface of the bar varies sinusoidally from 40?C at the left edge to a maximum of 250?C in the center and back to 40?C at the right edge.From Problem 3.31: In a long, 30-cm square bar shown in the accompanying sketch, the left face is maintained at 40?C and the top face is maintained at 250?C. The right face is in contact with a fluid at 40?C through a heat transfer coefficient of 60 W/(m2K) and the bottom face is in contact with a fluid at 250?C through a heat transfer coefficient of 100 W/(m2K). If the thermal conductivity of the bar is 20 W/(mK), calculate the temperature at the 9 nodes shown in the sketch.GIVENSquare bar with one surface at fixed temperature, one surface with a specified temperature distribution, and two surfaces with convective boundaryconditions

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Tr(x) Tm=40°C n=60 W(m² K) 2. 3. 40°C 4 Ta- 250°C ho- 100 W/(m? K)