please help

1. (Angular) Heat Conduction with Temperature-Dependent Thermal Conductivity Problem 10.B12 in BSL. (Hint: you will also need to derive a simple formula for how the thermal conductivity k depends upon temperature T. To do so, use the fact that the thermal conductivity varies linearly with temperature: k=cT+d, where cand d are constants. Then, solve for cand d using the known values ku-ko at 7-7and kkat TT..)