Răspunsuri

  • Utilizator Brainly
2014-02-16T19:22:45+02:00
E(x)=1/(x-2)-x/(x^2-4):2/(x-2)(x+2)=(x+2-x)/(x^2-4):2/(x-2)(x+2)=2/(x-2)(x+2)*(x-2)(x+2)/2 =1





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