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claudia_cla2011
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Pe: 2014-01-07T16:46:23+02:00 In: In:

Verificare exerciti algebra I

Am avut niste probleme pentru vacanta si vreau sa le verific daca le-am facut bine . Si daca nu am facut bine va rog sa imi explicati unde am gresit . O sa mai fac post-uri de genul acesta ca am destul de multe .

    % MathType!Translator!2!1!LaTeX.tdl!TeX -- LaTeX 2.09 and later! % MathType!MTEF!2!1!+- % feqaeaartrvr0aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaebbnrfifHhDYfgasaacH8srps0l % bbf9q8WrFfeuY-Hhbbf9v8qqaqFr0xc9pk0xbba9q8WqFfea0-yr0R % Yxir-Jbba9q8aq0-yq-He9q8qqQ8frFve9Fve9Ff0dmeaabaqaciGa % caGaaeqabaaaamaaaOabaeqabaGaaGymaiaac6cacaqGGaGaaeOuai % aabwgacaqG6bGaaeyDaiaabYgacaqG0bGaaeyyaiaabshacaqG1bGa % aeiBaiaabccacaqGJbGaaeyyaiaabYgacaqGJbGaaeyDaiaabYgaca % qG1bGaaeiBaiaabwhacaqGPbGaaeiiaaqaamaadmaabaGaaGOmaiaa % cYcacaGGOaGaaGOnaiaacMcacqGHRaWkcaaIXaGaaiilaiaaikdaca % GGOaGaaGOnaiaacMcacqGHsislcaaIXaWaaSaaaeaacaaIXaaabaGa % aGOnaaaaaiaawUfacaGLDbaacqGHflY1caaIWaGaaiilaiaaiEdaca % aI1aGaaeiiaiaabwgacaqGZbGaaeiDaiaabwgacaqGGaGaaeOoaaqa % aiaabkfacaqGLbGaaeOEaiaab+gacaqGSbGaaeODaiaabggacaqGYb % GaaeyzaiaabQdaaeaadaWadaqaaiaaikdacaGGSaGaaiikaiaaiAda % caGGPaGaey4kaSIaaGymaiaacYcacaaIYaGaaiikaiaaiAdacaGGPa % GaeyOeI0IaaGymamaalaaabaGaaGymaaqaaiaaiAdaaaaacaGLBbGa % ayzxaaGaeyyXICTaaGimaiaacYcacaaI3aGaaGynaaqaamaadmaaba % GaaGOmamaalaaabaGaaGOnaaqaaiaaiMdaaaGaey4kaSIaaGymamaa % laaabaGaaGOmaiaaiAdacqGHsislcaaIYaaabaGaaGyoaiaaicdaaa % GaeyOeI0YaaSaaaeaacaaI3aaabaGaaGOnaaaaaiaawUfacaGLDbaa % cqGHflY1caaIWaGaaiilaiaaiEdacaaI1aaabaWaaeWaaeaadaWcaa % qaaiaaikdacaaI0aaabaGaaGyoaaaacqGHRaWkcaaIXaWaaSaaaeaa % caaIYaGaaGinaaqaaiaaiMdacaaIWaaaaiabgkHiTmaalaaabaGaaG % 4naaqaaiaaiAdaaaaacaGLOaGaayzkaaGaeyyXICTaaGimaiaacYca % caaI3aGaaGynaaqaamaabmaabaWaaSaaaeaacaaIYaGaaGinaaqaai % aaiMdaaaGaey4kaSYaaSaaaeaacaaIXaGaaGymaiaaisdaaeaacaaI % 5aGaaGimaaaacqGHsisldaWcaaqaaiaaiEdaaeaacaaI2aaaaaGaay % jkaiaawMcaaiabgwSixlaaicdacaGGSaGaaG4naiaaiwdaaeaadaqa % daqaamaalaaabaGaaGOmaiaaisdaaeaacaaI5aaaaiabgUcaRmaala % aabaGaaGymaiaaiMdaaeaacaaI5aaaaiabgkHiTmaalaaabaGaaG4n % aaqaaiaaiAdaaaaacaGLOaGaayzkaaGaeyyXICTaaGimaiaacYcaca % aI3aGaaGynaaqaamaabmaabaWaaSaaaeaadaahbaWcbeqaaiaaikda % caGGPaaaaOGaaGinaiaaiodaaeaacaaI5aaaaiabgkHiTmaalaaaba % WaaWraaSqabeaacaaIZaGaaiykaaaakiaaiEdaaeaacaaI2aaaaaGa % ayjkaiaawMcaaiabgwSixlaaicdacaGGSaGaaG4naiaaiwdacqGH9a % qpdaWcaaqaaiaaiIdacaaI2aGaeyOeI0IaaGOmaiaaigdaaeaacaaI % XaGaaGioaaaacqGHflY1caaIWaGaaiilaiaaiEdacaaI1aGaeyypa0 % ZaaSaaaeaacaaI2aGaaGynaaqaaiaaigdacaaI4aaaaiabgwSixpaa % laaabaGaaG4naiaaiwdadaahaaWcbeqaaiaacIcacaaI1aaaaaGcba % GaaGymaiaaicdacaaIWaaaaiabg2da9maalaaabaGaaGOnaiaaiwda % aeaacaaIXaGaaGioaaaacqGHflY1daWcaaqaaiaaigdacaaI1aaaba % GaaGOmaiaaicdaaaWaaWbaaSqabeaacaGGOaGaaGynaaaakiabg2da % 9maalaaabaGaaGOnaiaaiwdaaeaacaaIXaGaaGioaaaacqGHflY1da % WcaaqaaiaaiodaaeaacaaI0aaaaiaacIcacaWGHbGaamyAaiaadoga % caWGPbGaaeiiaiaabggacaqGTbGaaeiiaiaabohacaqGPbGaaeyBai % aabchacaqGSbGaaeyAaiaabAgacaqGPbGaae4yaiaabggacaqG0bGa % aeykaaqaamaalaaabaGaaGOnaiaaiwdaaeaacaaI2aaaaiabgwSixp % aalaaabaGaaGymaaqaaiaaisdaaaGaeyypa0ZaaSaaaeaacaaI2aGa % aGynaaqaaiaaikdacaaI0aaaaaaaaa!1378! \[ \begin{array}{l} 1.{\rm Rezultatul calculului } \\ \left[ {2,(6) + 1,2(6) - 1\frac{1}{6}} \right] \cdot 0,75{\rm este :} \\ {\rm Rezolvare:} \\ \left[ {2,(6) + 1,2(6) - 1\frac{1}{6}} \right] \cdot 0,75 \\ \left[ {2\frac{6}{9} + 1\frac{{26 - 2}}{{90}} - \frac{7}{6}} \right] \cdot 0,75 \\ \left( {\frac{{24}}{9} + 1\frac{{24}}{{90}} - \frac{7}{6}} \right) \cdot 0,75 \\ \left( {\frac{{24}}{9} + \frac{{114}}{{90}} - \frac{7}{6}} \right) \cdot 0,75 \\ \left( {\frac{{24}}{9} + \frac{{19}}{9} - \frac{7}{6}} \right) \cdot 0,75 \\ \left( {\frac{{{}^{2)}43}}{9} - \frac{{{}^{3)}7}}{6}} \right) \cdot 0,75 = \frac{{86 - 21}}{{18}} \cdot 0,75 = \frac{{65}}{{18}} \cdot \frac{{75^{(5} }}{{100}} = \frac{{65}}{{18}} \cdot \frac{{15}}{{20}}^{(5} = \frac{{65}}{{18}} \cdot \frac{3}{4}(aici{\rm am simplificat)} \\ \frac{{65}}{6} \cdot \frac{1}{4} = \frac{{65}}{{24}} \\ \end{array} \] % MathType!End!2!1!

La exercitiul asta m-am cam incurcat. O data mi-a dat 65/24 (rezultatul demonstrat , si mai avum vre-o doua zile l-am mai facut de doua ori si mi-a dat rezultatele acestea : 83/10 si 83/40 . Doar la rezultatul pe care l-am demonstrat mai stiu rezolvarea. Care este rezultatul corect? Daca este din cele doua nereprezentate aratati-mi cum sa fac , macar cum sa incep. Multumesc.

Problema 2 in curand .

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1 raspuns

  1. Green eyes
    maestru (V)

    Salut,

    Rezolvarea publicată de tine nu se prea înţelege. De aceea, am extras mai jos enunţul şi rezolvarea propusă de tine, acum se vede clar:

    \begin{array}{l} 1.{\rm Rezultatul calculului } \\ \left[ {2,(6) + 1,2(6) - 1\frac{1}{6}} \right] \cdot 0,75{\rm este :} \\ {\rm Rezolvare:} \\ \left[ {2,(6) + 1,2(6) - 1\frac{1}{6}} \right] \cdot 0,75 \\ \left[ {2\frac{6}{9} + 1\frac{{26 - 2}}{{90}} - \frac{7}{6}} \right] \cdot 0,75 \\ \left( {\frac{{24}}{9} + 1\frac{{24}}{{90}} - \frac{7}{6}} \right) \cdot 0,75 \\ \left( {\frac{{24}}{9} + \frac{{114}}{{90}} - \frac{7}{6}} \right) \cdot 0,75 \\ \left( {\frac{{24}}{9} + \frac{{19}}{9} - \frac{7}{6}} \right) \cdot 0,75 \\ \left( {\frac{{{}^{2)}43}}{9} - \frac{{{}^{3)}7}}{6}} \right) \cdot 0,75 = \frac{{86 - 21}}{{18}} \cdot 0,75 = \frac{{65}}{{18}} \cdot \frac{{75^{(5} }}{{100}} = \frac{{65}}{{18}} \cdot \frac{{15}}{{20}}^{(5} = \frac{{65}}{{18}} \cdot \frac{3}{4}(aici{\rm am simplificat)} \\ \frac{{65}}{6} \cdot \frac{1}{4} = \frac{{65}}{{24}} \\ \end{array}

    În a patra spre a cincea linie a rezolvării tale treci de la fracţia \bl\frac{114}{90} la fracţia \bl\frac{19}{9}. Aici este greşeala.

    Elimină eroarea, refă calculele şi sper să reuşeşti să rezolvi corect. Mult succes !

    P.S. Te rog să îţi corectezi greşelile de ortografie, în titlul mesajului tău „exerciţii” se scrie cu 2 „i”. În plus, nu se scrie „vre-o”, ci se scrie împreună, într-un singur cuvânt, fără cratimă. Să nu se mai repete ! Mulţumesc.

    Green eyes.

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