Verified answer

a)[tex]\sqrt{36+64}[/tex]=[tex]\sqrt{100}[/tex]=10

b) [tex]\sqrt{25+36} =\sqrt{61}[/tex]

в)[tex]\sqrt{\frac{9}{49} +\frac{16}{49} } =\sqrt{\frac{25}{49} } =\frac{5}{7}[/tex]

г) [tex]\sqrt{64+192} =\sqrt{256} =16[/tex]