1. 
Expand each of the following. 

2.  Expand each of the following. 

3. 
Find the indicated term in each of the following
eapansions. 

,
the term in , 

,
the middle term. 

4. 
Find the coefficient of in the expansion of .  
5.  Find the term which is independent of
in the expansion of . 

6. 
