SPECIAL APPLICATIONS OF ANALYSIS 



7.366 



C = i, 



Ci = I + 2 + 3 + 



+ O ~ i) 



n(n - i) 



159 



C 2 =1-2 + 1-3 + 1-4 + + i-O- i) 



+ 2-3 + 2-4 + + 2 -(n-i) 



(n - 2)( - i) = *(*-')(*-*) (3* -i) 



24 



2. 



3. 



G; + 



( i) 







Co 



= i C* = o, 

 = i 



34 



Ci = 3 Ci = 6, 



O o I 



-3 



= i 



= 10, 



3 4 



C 2 = 2 C 2 = II, 



= 6. 



C 2 = 7 C 2 = 25 C 2 = 65, 



-2 -3 -4 



C 3 =15 C 3 = 90 C 3 = 350. 



7.367 Table of C t . 



