solve(x^2+6*x+9);

NiQhIiRGIw==

plot(x^2+6*x+9,view=[-4..4,0..20]);

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solve(x^2+x+5);

NiQsJiMiIiIiIiMhIiIqJiomRiRGJV4jRiVGJUYlKSIjPkYkRiVGJSwmRiRGJyomLCRGKUYlRiVGK0YlRic=

plot(x^2+x+5,view=[-4..4,0..20]);

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solve(x^2+4*x-5);

NiQiIiIhIiY=

plot(x^2+4*x-5);

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plot(x^5-x+1,x=-2..1);

-%%PLOTG6&-%'CURVESG6$7dw7$$!#?!""$!$!H!""7$$!0iC\=FU)>!#9$!0v6.Qptx#!#87$$!0KkGM.0(>!#9$!08]5$\$Qn#!#87$$!0oNrWp]&>!#9$!0(*Q5"*R3c#!#87$$!0kFbCL&R>!#9$!0%[&HV"p]C!#87$$!0(Qx%)32C>!#9$!.@T#QcWB!#67$$!0=NqHN(4>!#9$!03u0c9#\A!#87$$!0T"GE;*[*=!#9$!0,Gr#>]`@!#87$$!0x`2GS&z=!#9$!0-r\%)ow0#!#87$$!0$f=n"QU'=!#9$!0oTywd_'>!#87$$!0c7D1)\[=!#9$!0%pJWmOt=!#87$$!0u[(pTjM=!#9$!0sc:&R-&z"!#87$$!0v],rE!>=!#9$!0\'*fVm'4<!#87$$!07C[;bL!=!#9$!0y@n%)3pi"!#87$$!0=Nqs_#)y"!#9$!0m#\7K))\:!#87$$!0U$om#QXx"!#9$!0&3M2%)>#["!#87$$!0<MoWI#e<!#9$!0F&e+mW/9!#87$$!0h@Ve:Wu"!#9$!0M?JyX3M"!#87$$!08D]hX$G<!#9$!03a:)*3%p7!#87$$!0BY#p479<!#9$!0,k*3ES37!#87$$!0rT$yU^)p"!#9$!09k&f>"Q9"!#87$$!/(Rz,`Oo"!#8$!0u(f!>EX3"!#87$$!0ze<&o9o;!#9$!0r*>)G9\-"!#87$$!0_.2N2Rl"!#9$!0eFs&pR@(*!#97$$!0jD^7[&Q;!#9$!06)><eqs"*!#97$$!0">Q1UfA;!#9$!0n8>7SZi)!#97$$!03;KF1(3;!#9$!0'*pEcia;)!#97$$!0iC\#pq$f"!#9$!0/jQNduo(!#97$$!0E_/86#y:!#9$!0d?E8aF@(!#97$$!0Z$p=:0j:!#9$!0NPFPAmw'!#97$$!07C["QQ[:!#9$!0Ppi))z;N'!#97$$!0E_/$y4K:!#9$!0T+u>_'4f!#97$$!0tX"\TY<:!#9$!0l3QIh(Gb!#97$$!0Fa3dR=]"!#9$!0\_s"*)eQ^!#97$$!0F`1Q"o(["!#9$!/6`(=L$*z%!#87$$!0[&4RF?s9!#9$!0'eI(\GNW%!#97$$!0MoOaQwX"!#9$!0-gh&[rAT!#97$$!0#['Hw9CW"!#9$!0sI0E69!Q!#97$$!0PtYtIvU"!#9$!0cN<bI2]$!#97$$!0;Kk`[>T"!#9$!0l>+2](*>$!#97$$!0pPv-TpR"!#9$!0&)[OV)zAH!#97$$!0b5@o$f"Q"!#9$!0du$3GF_E!#97$$!0E_/UtjO"!#9$!/1i'eeiR#!#87$$!0_.2e(Q_8!#9$!0n84=Q9<#!#97$$!0D]+BejL"!#9$!0$e+e<lD>!#97$$!0pQxQ@?K"!#9$!0<D`@@ir"!#97$$!0%ycB`t18!#9$!/rk,.Q.:!#87$$!0\)p4Y5#H"!#9$!0lnX_O%48!#97$$!016A3feF"!#9$!01D#QZ*[5"!#97$$!0[&4\;zh7!#9$!0Nit9'[m$*!#:7$$!0U$o')\#eC"!#9$!0N!pmh2`v!#:7$$!0=Os5t7B"!#9$!0*H97jK')f!#:7$$!/-/QcN:7!#8$!/OE$R')HO%!#97$$!0NqSb@;?"!#9$!0'p_m@cNI!#:7$$!0*ydN+)f="!#9$!0&3b"o!Q.;!#:7$$!0_/45r3<"!#9$!0omt8#3vH!#;7$$!0mKl.sd:"!#9$"0b#**oe*GM*!#;7$$!0Z%*)=&G29"!#9$"0&p"QrQ:4#!#:7$$!0&**)zSwi7"!#9$"0^as>z*RJ!#:7$$!0$oO$H`16"!#9$"0E:Cr0j?%!#:7$$!0c6BLjd4"!#9$"0kUhq)Hg^!#:7$$!0CZ%\B4!3"!#9$"/Q(=jf85'!#97$$!0T"GOj!f1"!#9$"0>'Gh))z**o!#:7$$!//3O"G-0"!#8$"0`Kzm%fDx!#:7$$!0c6B:6_."!#9$"04zcTGJY)!#:7$$!0^,.sI--"!#9$"0,9qc1!\"*!#:7$$!0.05g$e/5!#9$"0%=-o`a9)*!#:7$$!0tX"H.s,**!#:$"/\9DaNQ5!#87$$!0(Rzeh7a(*!#:$"0E))R'4X#4"!#97$$!0V'GdY;"f*!#:$"0v7>+*[Z6!#97$$!0:HeO;OW*!#:$"0FIR:sK>"!#97$$!0^-0g?FH*!#:$"0%y`;@IO7!#97$$!0&)pR\j#R"*!#:$"0drp1:jF"!#97$$!0Gc7b1#)**)!#:$"0"Hbh(=*48!#97$$!0X!4=W%y%))!#:$"0'3&=k\DM"!#97$$!0Gc7&oi)p)!#:$"0u)4x\$=P"!#97$$!0$f=P/,R&)!#:$"0>")o**>**R"!#97$$!0mJj'e:)R)!#:$"0mxL^i?U"!#97$$!0He;$*QcB)!#:$"0)peXrpW9!#97$$!0>Qw#*z*)3)!#:$"0r9u*\ei9!#97$$!0BX!4&oQ%z!#:$"0-e+RU!y9!#97$$!0"He;r#yy(!#:$"0HiP:6B\"!#97$$!0hAX]a6j(!#:$"0<r.ABV]"!#97$$!09Gci0')[(!#:$"0@L<.`L^"!#97$$!/7C[]APt!#9$"0cJU`v5_"!#97$$!)C\*=(!")$"0#zVg_'o_"!#97$$!0x`2l[$Hq!#:$"0))[8*=JJ:!#97$$!0d9Hyz2*o!#:$"0XoK.<P`"!#97$$!0^-0SG;t'!#:$"/yNhL$\`"!#87$$!0'3<Mx,#e'!#:$"/4K)GlY`"!#87$$!0f=P9_QV'!#:$"01j"369L:!#97$$!0;KkoobG'!#:$"0O3$)pW/`"!#97$$!0;Ji%*GV8'!#:$"0<G()zpl_"!#97$$!0Qw_N<S(f!#:$"0/.=*3J@:!#97$$!07BYKFq#e!#:$"0#*oNYBb^"!#97$$!0v\**GH>o&!#:$"0%f6n9(*3:!#97$$!0Z%*)y=#o_&!#:$"0%='y`96]"!#97$$!0e:J7_?P&!#:$"01bfokC\"!#97$$!0">Qwq8L_!#:$"0Jh"Qj1%["!#97$$!0lHf=#eo]!#:$"0LS$>aSt9!#97$$!06AWG!*3$\!#:$"0W`Y#)RRY"!#97$$!0\)pRT%)pZ!#:$"0xSCU%H_9!#97$$!/*zf>Thh%!#9$"06N'>RlS9!#97$$!0*oPvF!*yW!#:$"0.Lr)f')H9!#97$$!0X!4=QcCV!#:$"0<%p=3L<9!#97$$!005?!=?pT!#:$"0')HSDBVS"!#97$$!0OsW>yX,%!#:$"0yRM&)H5R"!#97$$!0V&3<BArQ!#:$"0"*[F"yUy8!#97$$!0uZ&4cyAP!#:$"02$o**z7l8!#97$$!0OrU:s#pN!#:$"/H"\GM6N"!#87$$!0(Hf=5D;M!#:$"/)yB$>(pL"!#87$$!/$f=(*\)eK!#9$"0929X4AK"!#97$$!06@U/6-7$!#:$"0&=#yjj!48!#97$$!0@T#[k8kH!#:$"0@^2YDTH"!#97$$!0([(\*4U2G!#:$"0**)oM")**y7!#97$$!0V&3<mRcE!#:$"0%R%=&pJk7!#97$$!0%yc8?D>D!#:$"0#em`/"4D"!#97$$!0Qv]"Q<cB!#:$"0a6V@"*[B"!#97$$!0v\**=D!=A!#:$"0$GW%pl7A"!#97$$!0$\)p\Dt0#!#:$"/7*Q)RO07!#87$$!0)f>R!z]">!#:$"0VT7J]7>"!#97$$!0v],87!f<!#:$"0u1A"Gtv6!#97$$!0lIh_*R5;!#:$"0=4FkJ4;"!#97$$!0h@V'yLb9!#:$"0**p0]oa9"!#97$$!0%)oP&G%HJ"!#:$"0#3gq_DJ6!#97$$!0&**)zf]$f6!#:$"0F3^69f6"!#97$$!0kFb59")***!#;$"0>"[]6(**4"!#97$$!0sW*)y?$4')!#;$"0@r!y%)3'3"!#97$$!0-*zffQ4r!#;$"0U6M/#4r5!#97$$!0&Gc7l!)fb!#;$"0JwQ`(fb5!#97$$!/MoO`%Q/%!#:$"0CI_MQ//"!#97$$!0v[(\\2xD!#;$"0xI"Q2xD5!#97$$!0CGc7lZ[*!#<$"0()[]w%[45!#97$$"0=/4=;*[^!#<$"0:F#Q3^[**!#:7$$"09OsW\t2#!#;$"0&='R4lAz*!#:7$$"0nOtYoJ\$!#;$"0FzLn$o]'*!#:7$$"0d:JiK5/&!#;$"0LPI****e\*!#:7$$"0:He;_u\'!#;$"0%4gjjE]$*!#:7$$"0"4=O-$)>!)!#;$"0_BD:]!)>*!#:7$$"0iE`1L#3&*!#;$"0"pV2WD\!*!#:7$$"0tW*)GXm5"!#:$"0)>(eo?N*))!#:7$$"0X*)yP?nD"!#:$"0`j,4$fV()!#:7$$"/3;KQ>59!#9$"0Qw$fQO!f)!#:7$$"0sV([kRi:!#:$"0,l_cM&Q%)!#:7$$"0:Ji%[D-<!#:$"0$>8_W<*H)!#:7$$"0#Qw_$[D'=!#:$"/rEUJpR")!#97$$"/%zex;f+#!#9$"/LAR3L(*z!#97$$"0%ze<uxe@!#:$"0^L396f%y!#:7$$"0T"GcX30B!#:$"//LXKU,x!#97$$"0yb6$)RvY#!#:$"0Dqs03;a(!#:7$$"0c6B;9#3E!#:$"0y)3(3cQS(!#:7$$"0;Kky!)yw#!#:$"07^l&[O[s!#:7$$"0_/4e*R8H!#:$"/(R3$)*e2r!#97$$"0KkGFuD2$!#:$"0>Kpn5[&p!#:7$$"0#Gc7^"*4K!#:$"0#>H)QiT#o!#:7$$"0V([(HIjO$!#:$"0W3Ea**on'!#:7$$"06@Uk>u^$!#:$"0ZMNKAk`'!#:7$$"/(RzG5%oO!#9$"/N:wN-)R'!#97$$"/;Kka%)=Q!#9$"0LWi0uBE'!#:7$$"0%oOtlOjR!#:$"/0``%HW8'!#97$$"0*zf>xf>T!#:$"0A\B+a!**f!#:7$$"0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fsolve(x^5-x+1,x,-2..2);

JCEreVJJbjYhIio=

I have plot the quintic x^5-x+1 and modify the scale to see aproximately where is the real root, then i used the function "fsolve()" to determinate the root in the intervalle i have defined : [-2,2]. simplify( ( (x+3)/(x-3) ) - ( (x-3)/(x+3) ) );

LCQqKCIjNyIiIkkieEc2IkYlLCYqJClGJiIiI0YlRiUiIiohIiJGLUYl

solve(1/R=1/p+1/q,R);

KihJInBHNiIiIiJJInFHRiRGJSwmRiZGJUYjRiUhIiI=

factor(5*x^2*y^2-10*x^2*y+20*y^2);

LCQqKCIiJiIiIkkieUc2IkYlLCgqJilJInhHRiciIiNGJUYmRiVGJSomRixGJUYqRiUhIiIqJiIiJUYlRiZGJUYlRiVGJQ==

diff(x*sin(x),x);

LCYtSSRzaW5HNiQlKnByb3RlY3RlZEdJKF9zeXNsaWJHNiI2I0kieEdGKCIiIiomRipGKy1JJGNvc0dGJUYpRitGKw==

diff(diff(x*sin(x),x),x);

LCYqJiIiIyIiIi1JJGNvc0c2JCUqcHJvdGVjdGVkR0koX3N5c2xpYkc2IjYjSSJ4R0YrRiVGJSomRi1GJS1JJHNpbkdGKEYsRiUhIiI=

diff(diff(diff(x*sin(x),x),x),x);

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diff(1/(x+1),x);

LCQqJCksJkkieEc2IiIiIkYoRigiIiMhIiJGKg==

diff(diff(1/(x+1),x),x);

LCQqJiIiIyIiIiksJkkieEc2IkYlRiVGJSIiJCEiIkYl

diff(diff(diff(1/(x+1),x),x),x);

LCQqJiIiJyIiIiksJkkieEc2IkYlRiVGJSIiJSEiIkYr

diff(tan(x),x);

LCYiIiJGIyokKS1JJHRhbkc2JCUqcHJvdGVjdGVkR0koX3N5c2xpYkc2IjYjSSJ4R0YrIiIjRiNGIw==

diff(diff(tan(x),x),x);

LCQqKCIiIyIiIi1JJHRhbkc2JCUqcHJvdGVjdGVkR0koX3N5c2xpYkc2IjYjSSJ4R0YrRiUsJkYlRiUqJClGJkYkRiVGJUYlRiU=

diff(diff(diff(tan(x),x),x),x);

LCYqJiIiIyIiIiksJkYlRiUqJCktSSR0YW5HNiQlKnByb3RlY3RlZEdJKF9zeXNsaWJHNiI2I0kieEdGL0YkRiVGJUYkRiVGJSooIiIlRiVGKUYlRidGJUYl

Int(x*exp(-3*x),x)=int(x*exp(-3*x),x);

Ly1JJEludEc2JCUqcHJvdGVjdGVkR0koX3N5c2xpYkc2IjYkKiZJInhHRigiIiItSSRleHBHRiU2IywkKiYiIiRGLEYrRiwhIiJGLEYrLCQqKCNGLCIiKkYsLCZGLEYsRjFGLEYsRi1GLEYz

Int(x*exp(-3*x),x=1..2)=int(x*exp(-3*x),x=1..2);

Ly1JJEludEc2JCUqcHJvdGVjdGVkR0koX3N5c2xpYkc2IjYkKiZJInhHRigiIiItSSRleHBHRiU2IywkKiYiIiRGLEYrRiwhIiJGLC9GKztGLCIiIywmKiYjIiIlIiIqRiwtRi42IyEiJEYsRiwqJiMiIihGO0YsLUYuNiMhIidGLEYz

Int(x*exp(-3*x),x=0..infinity)=int(x*exp(-3*x),x=0..infinity);

Ly1JJEludEc2JCUqcHJvdGVjdGVkR0koX3N5c2xpYkc2IjYkKiZJInhHRigiIiItSSRleHBHRiU2IywkKiYiIiRGLEYrRiwhIiJGLC9GKzsiIiFJKWluZmluaXR5R0YmI0YsIiIq

Int(1/x,x=1..infinity)=int(1/x,x=1..infinity);

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Int(1/x,x=0..infinity)=int(1/x,x=0..infinity);

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The integral is calculated on an other intervalle but results are equals. p:=solve(cos(2*x)-3*sin(2*x));

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evalf(p);

JCIrc0Z2MzshIzU=

assume(R,real); assume(R>0); assume(b,real); subs(y=2*x,expand(R*sin(y-b)));

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