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by Dorobantu Razvan
Sat Dec 13, 2008 9:40 pm
Forum: Matematica distractiva
Topic: Cuvantul magic
Replies: 12
Views: 1419

ce-i aia kick?
by Dorobantu Razvan
Sat Dec 13, 2008 6:31 pm
Forum: Forum de test
Topic: test avatar
Replies: 2
Views: 838

test avatar

test avatar... era de 1000+ pixeli si lfacut cu nero de 200/160 :D
A da imaginea e din Flat Out Ultimate Carnage.
by Dorobantu Razvan
Sat Dec 13, 2008 6:09 pm
Forum: Matematica distractiva
Topic: Cuvantul magic
Replies: 12
Views: 1419

Pt cultura ta generala, ,,fii'' se scrie ,,fi''.
by Dorobantu Razvan
Fri Dec 12, 2008 8:22 pm
Forum: Matematica distractiva
Topic: Cuvantul magic
Replies: 12
Views: 1419

Da dar ar putea sa fie si TRAPA, si CRINA.
by Dorobantu Razvan
Thu Dec 11, 2008 9:10 pm
Forum: Clasa a 5-a
Topic: Maraton de probleme de clasa a V-a - semestrul I
Replies: 94
Views: 9951

Problema 12:
\( N=7^n+7^{n+1}+7^{n+2}+7^{n+3} \)
Aratati ca \( N\vdots100 \)
Stiu ca e mai grea, dar...intotdeauna exista oameni destepti care sa rezolve probleme destepte, nu? :P
by Dorobantu Razvan
Thu Dec 11, 2008 9:06 pm
Forum: Clasa a 5-a
Topic: Maraton de probleme de clasa a V-a - semestrul I
Replies: 94
Views: 9951

Problema 11: \frac{\overline{aab5}}{\overline{cd}}=x,rest98 \overline{aab5}=x*\overline{cd}+98 \overline{cd}>98=>\overline{cd}=99 \overline{aab5}=99x+98 u(99x)=7=>u(x)=3 x nu poate fi 3. x=13=>\overline{aab5}=1385(F) x=23=>\overline{aab5}=2375(F) x=33=>\overline{aab5}=3365(A) :shock: :shock: :shock:...
by Dorobantu Razvan
Wed Dec 03, 2008 12:16 pm
Forum: Clasa a 5-a
Topic: Casatorie extravaganta
Replies: 8
Views: 1105

Nu...nu sunt niste virusi...sunt niste personaje din romanele SF de dragoste scrise de mihaela (belutza) :lol: :lol:
999! se citeste 999 factorial si inseamna \( 1*2*3*...*999 \)
\( a!=1*2*3*...*a \)
by Dorobantu Razvan
Mon Dec 01, 2008 11:01 am
Forum: Clasa a 5-a
Topic: Maraton de probleme de clasa a V-a - semestrul I
Replies: 94
Views: 9951

Exista o formula generala?
by Dorobantu Razvan
Sat Nov 29, 2008 9:26 pm
Forum: Clasa a 5-a
Topic: Casatorie extravaganta
Replies: 8
Views: 1105

Nu stiu dar imi place cum ganditi :lol: . Niste virusuri? Interesant...
by Dorobantu Razvan
Sat Nov 29, 2008 9:25 pm
Forum: Chat de voie
Topic: Culmi :)
Replies: 13
Views: 1663

Gresit. BMW = Break My Wallet.
by Dorobantu Razvan
Fri Nov 28, 2008 9:38 pm
Forum: Clasa a 5-a
Topic: Casatorie extravaganta
Replies: 8
Views: 1105

Pt ca mi-a placut, va dau si eu o problema. Catalina si Cristin bla bla bla. Ei au 999! copii. Cati copii au? Iata raspunsul, tine-ti-va bine: 402,387,260,077,093,773,543,702,433,923,003,985,719,374,864,210, 714,632,543,799,910,429,938,512,398,629,020,592,044,208,486, 969,404,800,479,988,610,197,196...
by Dorobantu Razvan
Fri Nov 28, 2008 9:35 pm
Forum: Clasa a 5-a
Topic: Casatorie extravaganta
Replies: 8
Views: 1105

:lol: Prea tare... :lol: :lol: :lol: Fereste-te de Catalina sau de Cristin...o sa te omoare. Dar presupun ca ei inca nu au vazut problema :lol: . Revenind la ale noastre: C (de la copii bineinteles) =2+2^2+2^3+...+2^{39} C+2=2+2+2^2+2^3+...+2{39} C+2=2^2+2^2+...+2{39} C+2=2^2*2+2^3+...+2^{39} C+2=2^...
by Dorobantu Razvan
Fri Nov 28, 2008 9:14 pm
Forum: Clasa a 5-a
Topic: Inghetata ...
Replies: 4
Views: 786

\( a=6+a:2/*2 \)
\( 2a=12+a \)
\( a=12 \)
by Dorobantu Razvan
Fri Nov 28, 2008 8:45 pm
Forum: Clasa a V-a
Topic: Olimpiada judeteana Tulcea
Replies: 2
Views: 481

N-am verificat, dar cred ca e bine... :)
by Dorobantu Razvan
Fri Nov 28, 2008 8:44 pm
Forum: Chat de voie
Topic: Culmi :)
Replies: 13
Views: 1663

culmea fizicii-sa pasti un cal-putere pe un camp magnetic culmea sinuciderii-sa te arunci de pe blocul de desen culmea maratonului-sa alergi de unul singur si sa iesi pe locul doi culmea ganditului-sa cazi pe ganduri si sa iti spargi capul culmea croitoriei-sa cosi chiloti pt fundul marii culmea zbo...
by Dorobantu Razvan
Tue Nov 25, 2008 10:18 am
Forum: Clasa a V-a
Topic: Concursul "Congruente", problema 3
Replies: 1
Views: 454

\( a:b=c,rest=r \)
\( b:a=r,rest=c \)
\( a=bc+r \)
\( b=ar+c \)
\( r<b \)
\( c<a \)
Daca \( b<a \)\( =>r=0,c=a \)
\( a=ba+0 \)
\( a=ba \)
\( b=a:a \)
\( b=1 \)
\( a<b \)\( => \)analog ca \( a=1 \) si \( b={1,2,3,4,...} \)
by Dorobantu Razvan
Sat Nov 22, 2008 12:14 pm
Forum: Clasa a V-a
Topic: Fractie reductibila
Replies: 7
Views: 762

Foarte adevarat. :D

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