U()=0.0251.33+2(+3)235 Use the software of your choice to a. Plot U between =10 and =10;(5pt) b. Plot the first derivative of U with respect to as a function of and mark the equilibrium states of the system; (5pt) c. Plot the second derivative of U with respect to as a function of and discuss what you can learn from this plot on the equilibrium states you identify in question above. (5pt)