Driving Process

Jim and Jerry are working on a new tpye of spaceport material. According to their experiment data, the thermal conductivity coefficient of this material is a function of the temperature. Because this material will be used in extremely low and high temperature, they want to find this coefficient at specific points. The unit of t is ^oc and the unit for f(t) is W/(m-^oc).

What is known:

• Function is
  
       

What is the heat transfer coefficient of this material at -∞, 1, +∞?

• The limit of this function at -∞, 1, +∞ is the coefficient of this material.