Deutsch English Français Italiano |
<0b78f563-349d-44a3-b5f7-8527315ba7dfn@googlegroups.com> View for Bookmarking (what is this?) Look up another Usenet article |
X-Received: by 2002:ad4:498e:0:b0:670:f16d:193b with SMTP id u14-20020ad4498e000000b00670f16d193bmr459411qvx.6.1701194786876; Tue, 28 Nov 2023 10:06:26 -0800 (PST) X-Received: by 2002:a05:690c:2f0d:b0:5cb:e3c9:ca22 with SMTP id ev13-20020a05690c2f0d00b005cbe3c9ca22mr434206ywb.7.1701194786429; Tue, 28 Nov 2023 10:06:26 -0800 (PST) Path: ...!news.nobody.at!newsreader4.netcologne.de!news.netcologne.de!peer01.ams1!peer.ams1.xlned.com!news.xlned.com!peer01.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail Newsgroups: fr.sci.maths Date: Tue, 28 Nov 2023 10:06:26 -0800 (PST) In-Reply-To: <6565bd77$0$7445$426a34cc@news.free.fr> Injection-Info: google-groups.googlegroups.com; posting-host=37.174.253.203; posting-account=1qbAGAkAAADcUtlizzXUEb5jUjfAdE2y NNTP-Posting-Host: 37.174.253.203 References: <5fe4bff6-0e96-42e6-b2a1-6d03d27820ban@googlegroups.com> <6565abee$0$6454$426a74cc@news.free.fr> <uk4bl4$7eca$1@dont-email.me> <6565bd77$0$7445$426a34cc@news.free.fr> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <0b78f563-349d-44a3-b5f7-8527315ba7dfn@googlegroups.com> Subject: =?UTF-8?Q?Re=3A_Equation_de_g=C3=A9om=C3=A9trie_impossible_pour_Maxima_e?= =?UTF-8?Q?t_d=27autres?= From: Yanick Toutain <yanicktoutain@gmail.com> Injection-Date: Tue, 28 Nov 2023 18:06:26 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Received-Bytes: 12709 Bytes: 12860 Lines: 180 Le mardi 28 novembre 2023 =C3=A0 11:14:17 UTC+1, Michel Talon a =C3=A9crit= =C2=A0: > Le 28/11/2023 =C3=A0 10:24, efji a =C3=A9crit :=20 > > L'=C3=A9quation me semble du type=20 > >=20 > > a*sqrt(P(x)) + b*sqrt(Q(x)) + c =3D 0=20 > >=20 > > avec P et Q des polyn=C3=B4mes de degr=C3=A9 2.=20 > > On ne peut pas s'en sortir analytiquement pour =C3=A9liminer les racine= s (il=20 > > me semble), > Si on peut, maxima:=20 > (%i1) eq1:a*sqrt(P(x))=3Dc-b*sqrt(Q(x));=20 > (%o1) a*sqrt(P(x)) =3D c-b*sqrt(Q(x))=20 > (%i2) expand(eq1^2);=20 > (%o2) a^2*P(x) =3D b^2*Q(x)-2*b*c*sqrt(Q(x))+c^2=20 > (%i3) eq2:b^2*Q(x)+c^2-a^2*P(x)=3D2*b*c*sqrt(Q(x));=20 > (%o3) b^2*Q(x)-a^2*P(x)+c^2 =3D 2*b*c*sqrt(Q(x))=20 > (%i4) expand(eq2^2);=20 > (%o4)=20 > b^4*Q(x)^2-2*a^2*b^2*P(x)*Q(x)+2*b^2*c^2*Q(x)+a^4*P(x)^2-2*a^2*c^2*P(x)= =20 > +c ^4 =3D 4*b^2*c^2*Q(x)=20 >=20 > qui est de degr=C3=A9 4 en x via Q^2 et P*Q donc soluble explicitement da= ns=20 > maxima.=20 > Cela =C3=A9tant avec une formule monstrueuse.=20 >=20 > --=20 > Michel Talon Merci de la r=C3=A9ponse J'y ai pens=C3=A9 apr=C3=A8s avoir post=C3=A9 mais Maxima me donne des solu= tions qui sont fausses sur le tableur Je divise par a pour passer de aX^4 =C3=A0 X^4=20 et avoir directement les cases libre office remplies en posant A1 B1 C1 D1 et E1 je calcule F1=3DB1/A1 G1 =3D C1/A1 H1 =3D D1/A1 I1=3D E1/A1 je demande =C3=A0 Maxima les 4 racines (%i1) S^4+F1*S^3+G1*S^2+H1*S+I1; Maxima me donne S1=3D-racine(-(3*(-8*H1+4*F1*G1-F1^3))/(2*racine((36*(racine(-256*I1^3-(-19= 2*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G= 1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1= ^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^= 2))/6+G1^3/27)^(2/3)+(9*F1^2-24*G1)*(racine(-256*I1^3-(-192*F1*H1-128*G1^2+= 144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+= 16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H= 1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1= /3)+48*I1-12*F1*H1+4*G1^2)/(racine(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*= G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4= *F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3= ^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)))-(ra= cine(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1= ^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*= G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-= I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)+((H1*F1-4*I1)/3+((-1)*G1^2)/9)/(rac= ine(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^= 2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G= 1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I= 1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)-(4*G1)/3+F1^2/2)/2-racine((36*(racin= e(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)= *H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-= 4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*= F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(2/3)+(9*F1^2-24*G1)*(racine(-256*I1^3-(-192= *F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1= -80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^= 2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2= ))/6+G1^3/27)^(1/3)+48*I1-12*F1*H1+4*G1^2)/(racine(-256*I1^3-(-192*F1*H1-12= 8*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1= ^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*= G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3= /27)^(1/3))/12+((-1)*F1)/4 S2=3Dracine(-(3*(-8*H1+4*F1*G1-F1^3))/(2*racine((36*(racine(-256*I1^3-(-192= *F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1= -80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^= 2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2= ))/6+G1^3/27)^(2/3)+(9*F1^2-24*G1)*(racine(-256*I1^3-(-192*F1*H1-128*G1^2+1= 44*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+1= 6*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1= ^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/= 3)+48*I1-12*F1*H1+4*G1^2)/(racine(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G= 1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*= F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^= (3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)))-(rac= ine(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^= 2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G= 1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I= 1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)+((H1*F1-4*I1)/3+((-1)*G1^2)/9)/(raci= ne(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2= )*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1= -4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1= *F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)-(4*G1)/3+F1^2/2)/2-racine((36*(racine= (-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*= H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4= *F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F= 1^2+4*I1*G1-H1^2))/6+G1^3/27)^(2/3)+(9*F1^2-24*G1)*(racine(-256*I1^3-(-192*= F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-= 80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2= *G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2)= )/6+G1^3/27)^(1/3)+48*I1-12*F1*H1+4*G1^2)/(racine(-256*I1^3-(-192*F1*H1-128= *G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^= 2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G= 1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/= 27)^(1/3))/12+((-1)*F1)/4 S3=3D-racine((3*(-8*H1+4*F1*G1-F1^3))/(2*racine((36*(racine(-256*I1^3-(-192= *F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1= -80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^= 2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2= ))/6+G1^3/27)^(2/3)+(9*F1^2-24*G1)*(racine(-256*I1^3-(-192*F1*H1-128*G1^2+1= 44*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+1= 6*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1= ^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/= 3)+48*I1-12*F1*H1+4*G1^2)/(racine(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G= 1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*= F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^= (3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)))-(rac= ine(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^= 2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G= 1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I= 1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)+((H1*F1-4*I1)/3+((-1)*G1^2)/9)/(raci= ne(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2= )*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1= -4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1= *F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)-(4*G1)/3+F1^2/2)/2+racine((36*(racine= (-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*= H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4= *F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F= 1^2+4*I1*G1-H1^2))/6+G1^3/27)^(2/3)+(9*F1^2-24*G1)*(racine(-256*I1^3-(-192*= F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-= 80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2= *G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2)= )/6+G1^3/27)^(1/3)+48*I1-12*F1*H1+4*G1^2)/(racine(-256*I1^3-(-192*F1*H1-128= *G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^= 2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G= 1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/= 27)^(1/3))/12+((-1)*F1)/4 S4=3Dracine((3*(-8*H1+4*F1*G1-F1^3))/(2*racine((36*(racine(-256*I1^3-(-192*= F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-= 80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2= *G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2)= )/6+G1^3/27)^(2/3)+(9*F1^2-24*G1)*(racine(-256*I1^3-(-192*F1*H1-128*G1^2+14= 4*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16= *G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^= 2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3= )+48*I1-12*F1*H1+4*G1^2)/(racine(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1= -27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F= 1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(= 3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)))-(raci= ne(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2= )*H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1= -4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1= *F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)+((H1*F1-4*I1)/3+((-1)*G1^2)/9)/(racin= e(-256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)= *H1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-= 4*F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*= F1^2+4*I1*G1-H1^2))/6+G1^3/27)^(1/3)-(4*G1)/3+F1^2/2)/2+racine((36*(racine(= -256*I1^3-(-192*F1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H= 1^2+(18*F1^3*G1-80*F1*G1^2)*H1+16*G1^4-4*F1^2*G1^3)*I1+27*H1^4-(18*F1*G1-4*= F1^3)*H1^3-(F1^2*G1^2-4*G1^3)*H1^2)/(2*3^(3/2))+(-G1*(H1*F1-4*I1)-3*(-I1*F1= ^2+4*I1*G1-H1^2))/6+G1^3/27)^(2/3)+(9*F1^2-24*G1)*(racine(-256*I1^3-(-192*F= 1*H1-128*G1^2+144*F1^2*G1-27*F1^4)*I1^2-((144*G1-6*F1^2)*H1^2+(18*F1^3*G1-8= ========== REMAINDER OF ARTICLE TRUNCATED ==========