Calculati: (4/11-11/11+8/11)-(7/11-9/11)+(15/11-18/11)=
![Calculati 411111181171191115111811 class=](https://ro-static.z-dn.net/files/dd9/3badcc156e60591b0a5a7b9fb9460167.jpg)
Răspuns:
[tex]\sqrt{11}-(7\sqrt{11}-9\sqrt{11} )+15\sqrt{11} -18\sqrt{11\\} =\\=\sqrt{11} +2\sqrt{11} +15\sqrt{11} -18\sqrt{18} =\\0[/tex]
Explicație pas cu pas: