a)
[tex]\sqrt{3} ^{2} +\sqrt{12}^{2} =x^{2} \\3+12=x^{2} \\15=x^{2} \\x=\sqrt{15}[/tex]
b)
[tex]\sqrt{34}^{2} +x^{2} =(7\sqrt{2})^{2} \\34+x^{2} =49*2\\x^{2} =98+34\\x^{2} =64\\x=8[/tex]
c)
[tex](5\sqrt{2})^{2} +(5\sqrt{3} )^{2} =x^{2} \\25*2+25*3=x^{2} \\x^{2} =125\\x=\sqrt{125} \\x=5\sqrt{5}[/tex]
licze na naj;))
