5;\sqrt{ m^{2}+ 5+16}>5;" alt="a(m; \sqrt{5};4 ); \sqrt{ m^{2}+ (\sqrt{5})^{2}+4^{2}}>5;\sqrt{ m^{2}+ 5+16}>5;" align="absmiddle" class="latex-formula">
25;m^{2}>4;(-\infty;-2)U(2;\infty)." alt=" m^{2}+ 21>25;m^{2}>4;(-\infty;-2)U(2;\infty)." align="absmiddle" class="latex-formula">