fiu ^ A E = 

 cof.^AEzzz 



= 214 = 

 n fin l a 



V (n- -i- 2 u cof| a-i- i) '' 



>j cof^ a -h I 

 ]/ ('2- -i- = « cof n a -H I / 



fui A E z= - ^' ^'" l '■'■ (" cof^. ^4-0 

 n- -h - n cof .^ a -+- I 



cof A E - ^^''cof-g- n.rp + c;ic of:-4-r 



/r --}- 2 n cof^ -I- I 

 repcritiir 

 cofPE — cof(AE — i-r^nz 



yi'cof]^rof'|-fin*.;.)-f-2»cof;.-^ cof^ 7 ->-:;>; nn'"(ncofrj^ i) 



/l* -h - " Cof r. -i- I 



(n' -\- I ) cof 2 a -4- 2 n 



n' -I- c /2 cof I a -i- I 

 el fin P E rz: 



tnvfwlcoqin cof ] -f- 1 )-n^JmJ(£of ' g - fin'r .) -^nfin;;cof^-fin^ 



jj' H- 2 /1 cof n a -h I 

 _ r/t' — i)fin^a 

 n ~\- 2 n cof 2 a -i- I 

 iintlc fiL 



cofPCG = til±.')-^''^^±i!iZiZ'C'JlliLl.^''' -'^'^ro. 



(/i'' -!- 2 /i cof^H- 1) fin r. liiii^ iL (i 



Eft itafjuc PCG rrpr", iindc pakt, circiilo.*; K C, J3C, 

 inviccm fnb nngiilo icflo f(carr, (jiii.i VC acl B C, cl (iC 

 ad EC noinuilcs funt. llinc fcqncns fluit 



Tlieo- 



