Răspunsuri

2014-08-12T03:43:04+03:00
 x^{2}= \frac{1}{2}=>x_{12}=±\sqrt{ \frac{1}{2}}= ±\frac{1}{ \sqrt{2}}=± \frac{ \sqrt{2}}{2}

 x_{1} = +\frac{ \sqrt{2}}{2}

 x_{2} = -\frac{ \sqrt{2}}{2}

Caracterul  a aparut deoarece am folosit semnul "±", care a deranjat editorul de ecuatii.


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