+Graham777 Posted January 2, 2015 Report Share Posted January 2, 2015 Am cateva nelamuriri asupra catorva probleme de limite. Aratati-mi, va rog, cum fac exercitiile a, d si e si explicati-mi cum se descompune cand am puteri de genul x^3-ax^2+bx. Quote Link to comment Share on other sites More sharing options...
Moderators Solution Courage Posted January 2, 2015 Moderators Solution Report Share Posted January 2, 2015 Pentru tipul de ecuatii cum ai zis tu, vezi asta: http://www.pro-didactica.ro/forum/index.php?forumID=8&ID=24230 Se pomeneste acolo despre impartirea polinoamelor. Ai aici: http://mate123.ro/formule-matematice-algebra-liceu-generala/impartirea-polinoamelor/ La a: La d: deci limita devine: Iar la e: Posibil să fi greşit la calcul. N-am stat să verific 3 Quote Link to comment Share on other sites More sharing options...
+Graham777 Posted January 3, 2015 Author Report Share Posted January 3, 2015 Alex, dacă mai ai timp, dă-mi niște idei și la astea, te rog. Quote Link to comment Share on other sites More sharing options...
Moderators Courage Posted January 3, 2015 Moderators Report Share Posted January 3, 2015 La primele 2 ai formula 32 = 25, etc La a treia: iar la ultima: 1 Quote Link to comment Share on other sites More sharing options...
+Graham777 Posted January 3, 2015 Author Report Share Posted January 3, 2015 Dă-mi o idee pentru g și h de la exercițiul 2, pe pagina de mai sus, te rog. Quote Link to comment Share on other sites More sharing options...
Moderators Courage Posted January 3, 2015 Moderators Report Share Posted January 3, 2015 x3 + 5x2 + 7x + 2 = (x + 2)(x2 + 3x + 1) x2 + x - 2 = (x - 1)(x + 2) 2x3 - 5x2 - 2x - 3 = (x - 3)(2x2 + x + 1) x3 - x2 - 7x + 3 = (x - 3)(x2 + 2x + 1) http://www.wolframalpha.com/widget/widgetPopup.jsp?p=v&id=7014d9722bc42de3f621eaad1da2615e&title=Simplifying%20Algebraic%20Expressions%20Calculator&theme=blue&i0=9x-9y^3&podSelect= 1 Quote Link to comment Share on other sites More sharing options...
+Graham777 Posted January 3, 2015 Author Report Share Posted January 3, 2015 Greseala mea, astea... La primele 2 ai formula 32 = 25, etc La a treia: iar la ultima: Acolo, la prima, cu ăia doi radicali, ai amplificat cu (x+1), dar tot rămâne (1-x^2) ori ceva și nu dă nedeterminare? Quote Link to comment Share on other sites More sharing options...
Moderators Courage Posted January 3, 2015 Moderators Report Share Posted January 3, 2015 1 + x = x + 1. Am pus - in fata sa fie egal cu cel de jos ca sa-i simplific. Noteaza x5 cu y si o sa vezi mai usor. La h nu-mi vine nicio idee... Quote Link to comment Share on other sites More sharing options...
+Raziel Posted January 3, 2015 Report Share Posted January 3, 2015 Eu le-am uitat p-astea... ma uit ca 2 Quote Link to comment Share on other sites More sharing options...
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