fiNd the Coefficient of X8 in the Power Series of Each

question 91

Short Answer

find the coefficient of x8 in the power series of each of the function.
- $$( 1 + x ) \left( 1 + x ^ { 2 } \right) \left( 1 + x ^ { 3 } \right) \left( 1 + x ^ { 4 } \right) \left( 1 + x ^ { 5 } \right)$$