\[1)\ {1,002}^{8} = (1 + 0,002)^{8} =\]
\[= C_{8}^{0} \bullet 1^{8} + C_{8}^{1} \bullet 1^{7} \bullet 0,002 + \ldots \approx\]
\[\approx 1 + 8 \bullet 0,002 = 1 + 0,016 =\]
\[= 1,016;\]
\[2)\ {0,997}^{9} = (1 - 0,003)^{9} =\]
\[= C_{9}^{0} \bullet 1^{9} + C_{9}^{1} \bullet 1^{8} \bullet ( - 0,003) + \ldots \approx\]
\[\approx 1 - 9 \bullet 0,003 = 1 - 0,027 =\]
\[= 0,973/\]