\[\boxed{\text{211\ (211).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1)\ \left( m^{5} \right)^{3} = m^{5 \cdot 3} = m^{15}\]
\[2)\ \left( m^{3} \right)^{4} = m^{3 \cdot 4} = m^{12}\]
\[3)\ \left( \left( m^{2} \right)^{4} \right)^{6} = \left( m^{8} \right)^{6} = m^{8 \cdot 6} =\]
\[= m^{48}\]
\[4)\ \left( m^{7} \right)^{2} \cdot \left( m^{4} \right)^{9} = m^{14} \cdot m^{36} =\]
\[= m^{14 + 36} = m^{50\ }\]