A 4- /7?272 4" hn^ fP

— 2 ghmnbi c^ — 2 hfnlc^ a^ — ifglma^ b-^

+ i^b^c^gm + b-^cjiii){gh ~\- iP)-\- 2{c^a^hn -^ c^a^fl)[hf -\- 2in^) 4- 2{a.^bjl-^ b^a^gm){fg—2Tp)

— 2{alc^pm + bla^g2n-{- c\bJPl-\-a\bJ^n-^ b\c^^g''-' l -\- c\aji' m) + 2fmn{alc2-^ al b-^)~\- 2gln{ b\c^-\- bla^)-\- 2hlm{c\ bi-h cla^)

— 2 ( ^2 Z?3 Cl 4- <^3 ^1 C2 ) {fP 4- ^/^"^ -h hn^ 4- /7727Z )

— 2/^2 a^{c^m^- 4- ^3 /^■^ ) -— 2gb^ b-s ( Ci P -h a^n^) — 2 /iC| Cg {b^P-^- a^ in- ) 4- 2(//— m72){gbiC2a2-\- hc^a^^b^)-\- 2{gm — nl){hc^azb^-^- fa^b^c^) 4- 2 ( /^/^ — /772 ) {fa-à b^ c^ 4- gb^ C2 <^2 )

— {Pb\c\-^ 772^ c^ a| ^ ,^2 ^2 ^2 )

+ 2 ( Z^3 Cl ^2 — C2 «3 ^1 ) ( Z?3 ^7 4- Cl /i772 4- a^fji — c^Jil— a^fm — b^ gn ) -\- 2{b^c^a^ a-^f- -^- c^a^b^b^ g^ 4- a-^ b^ c^ c^ JP )

— 2gh{b\a.^c^-V c\a^b^)— rLhf(^c\b^a^-\- a\b.^c^)— 2fg{a\c^b^-\-b\c^Œ^ -f- (4// — 2inn)c^a^^a-^b^~\- {t^gm — 2nl)a^b.^b^Ci-\-{[\hn — 2l7n)biC^c^a.j, -4- 2(a2è3<^i4- a^b.^c^){lb^c^-\- mc^a^^ Jia^b.^) — (a2è3Ci4- «3 6iC2)^