521 



40 



45 



50 



55 



60 



65 



70 



75 



80 



825 



85 



875 



1 = ^^l-m2 5m2,3 2-C05,3 ^ 

 cos fi 



^ ^ ^ 1 - m2 5m2 ,. ^, 



h = kln 



^ \—m'^x^-\-kx 



i-i ^ K in ./ 



^X—m'ix'i'-kx 

 ■\- 2m bg sin {mx) 



-J: 



dr^ 1 -m^sin^-Y 



m^~ k2—\ x = sin ,3 



