154 H I S T O I R E. 



-a^^b^i -p^ib^^ -cViyVi 



gvi^.vr 



-^-D^a^^jr z-p2g--f-D^c^rxz9^- c^ v''^^rq* _ 



__QVI^VX ^—O. 



Les termes i x^ y~ p^ q- & i jr %- p- q- qui reftent feuls m'en- 

 gagent a ajouter a B, 1^ %q-, & a C, C 79-, ce qui com- 

 plette le tableau precedent, duquel je tire 



A^ — a^K B^ = p^^ c^i zz: y^i z= A^^ = c, 

 b^i =: — a^-, p^i zn a^^ C^^ = — B^^, D^ — C^ 

 ce qui nous donne 



B zn a^^ (r^ j +7 z-) p- + C^ (x 4- 2) f , 

 C~~c^{x - y)q\ 

 c — — a^ [y- % — xr %)p^, 

 y zz: ay^ (^f y H-y Z") p^. 



Maintenant Tequation VII donne 



~ixry%p-q--^iy^%p-q--i-iy-%-p-q-—!ixy^prq^ 

 -a^^p^ H-a^^p^ -f-a^^V^ -B^a^ 



-B^-^a^ 



— 2x/z-p-qf--f-2x-j-p-qf^-+-B ^a x % p q 

 -B^ia^ -4-B^^b^ -a^V^ 



H-B^ic^x/9^-hB^rci^^x2^-B^^cVg^-B'^^ci>27'^ 

 -4-B^i|3^ -+-B^iyV -B^^P^ -B''V^ 



H-a^^a^xj^^zp'^— a^'^a^xy 2p* zz: o , 

 d*ou l'on tire 



