Mathematics - Calculus

Complete the crossword, then click "Check Answers". If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to begin the crossword. Note that two-word answers exist too.
     1             
                
                
 2                 
3             4       
                
5                6    
                
                
7                  
                
 8            9       
                
10