Давайте решим каждое выражение по очереди.
а) \(\left( \frac{8}{4} \right)^2 \cdot \frac{1}{3} \div (-0.5)^2 \):
\(\frac{8}{4} = 2\)
\(2^2 = 4\)
\((-0.5)^2 = 0.25\)
\(\frac{1}{3} \div 0.25 = \frac{1}{3} \times 4 = \frac{4}{3}\)
\(4 \cdot \frac{4}{3} = \frac{16}{3}\)
б) \(3000 \cdot (0.2)^3 \div (-2)^6\):
\(0.2^3 = 0.008\)
\((-2)^6 = 64\)
\(3000 \cdot 0.008 = 24\)
\(\frac{24}{64} = \frac{3}{8}\)
а) \(\frac{1.6}{(0.4)^2} \cdot (-3)^3\):
\(0.4^2 = 0.16\)
\(\frac{1.6}{0.16} = 10\)
\((-3)^3 = -27\)
\(10 \cdot (-27) = -270\)
б) \(3^5 \cdot \left(-\frac{2}{3}\right)^3 + \frac{1}{(-0.1)^3}\):
\(3^5 = 243\)
\(\left(-\frac{2}{3}\right)^3 = -\frac{8}{27}\)
\(243 \cdot -\frac{8}{27} = -72\)
\((-0.1)^3 = -0.001\)
\(\frac{1}{-0.001} = -1000\)
\(-72 + (-1000) = -1072\)
Ответы:
- а) \(-\frac{16}{3}\) б) \(\frac{3}{8}\)
- а) \(-270\) б) \(-1072\)