Wolfram Alpha este un site pe care va puteti face temele la algebra respectiv geometrie, chimie, fizica, Info, Sport si Jocuri, Muzica, Astronomie, Cultura si nu numai. (Poate sa compare firme de ex. scrieti in el IBM Microsoft si va va arata actiunile celor doua firme, poate converti unitati, poata compara lucruri precum Romania cu America daca scrieti Romania USA in el, populatia unui oras scriind orasul si multe alte lucruri interesante.
Adresa : http://www.wolframalpha.com/
Exemple :
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http://www.wolframalpha.com/input/?i=1%2F%28x-1%29%2B%282+x%2B3%29%2F%28x^2%2B2+x%2B1%29-1%2F%28x%2B1%29^2-%283+x-2%29%2F%28x^2-1%29+-+sqrt%288^2%29Code: Select all
http://www.wolframalpha.com/input/?i=1%2F%28x-1%29%2B%282+x%2B3%29%2F%28x^2%2B2+x%2B1%29-1%2F%28x%2B1%29^2-%283+x-2%29%2F%28x^2-1%29
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http://www.wolframalpha.com/input/?i=+x2*sqrt%284%29*%28x2%2Bx2^2-x2%29Bafta la facut teme in vacanta :)
(si nu va prinde nimeni daca folositi optiunea show steps de la alternate)
tristule , sarbatori fericite ~!