With substitution of Equation (45) into Equations (Ae), (49) and (50), the deri- 

 vatives of G, can be expressed in final foria as 



Tt/2 



S u coaG - ± - I + C-*)C 



ox * J _ 2 ~2 



^ + <■». 



+ + 



___^L__ - I + ( 2 *) C }d9 (52) 



2, + W_ 



15/2 



- - -2- I u sinQ (- _Jlt - I + ( 2 * 



oy * J ° -2-2 o 

 ' : . + ,Ji . 



-2 , ~2 



«/; 



+ T- ( 2U ) c}d0 (53) 



'3 



,2n. 



o 2 A + ^ 



— 5 + R + ( 2tl ) s | d9 (54) 



-2 . ~2 



i6 



