\[\boxed{\mathbf{3.}\mathbf{304}}\]
Пояснение.
Решение.
\[\textbf{а)}\ 35^{2} = 35 \cdot 35 = 1225\]
\[\textbf{б)}\ 100^{2} = 100 \cdot 100 = 10\ 000\]
\[\textbf{в)}\ 10^{3} = 10 \cdot 10 \cdot 10 = 1000\]
\[\textbf{г)}\ 11^{3} =\]
\[= 11 \cdot 11 \cdot 11 = 121 \cdot 11 =\]
\[= 1331\ \]
\[\textbf{д)}\ 15^{3} =\]
\[= 15 \cdot 15 \cdot 15 = 225 \cdot 15 =\]
\[= 3375\]
\[\textbf{е)}\ 103^{2} = 103 \cdot 103 = 10\ 609\]