Решение:

1. a) $$\frac{8^6}{8^4} = 8^{6-4} = 8^2 = 64$$
2. б) $$\frac{0,8^7}{0,8^4} = 0,8^{7-4} = 0,8^3 = 0,512$$
3. в) $$\frac{(-0,3)^5}{(-0,3)^3} = (-0,3)^{5-3} = (-0,3)^2 = 0,09$$
4. г) $$\frac{(1\frac{1}{2})^4}{(1\frac{1}{2})^2} = (1\frac{1}{2})^{4-2} = (1\frac{1}{2})^2 = (\frac{3}{2})^2 = \frac{9}{4} = 2\frac{1}{4} = 2,25$$
5. д) $$\frac{(-2\frac{1}{3})^6}{(-2\frac{1}{3})^3} = (-2\frac{1}{3})^{6-3} = (-2\frac{1}{3})^3 = (-\frac{7}{3})^3 = -\frac{343}{27} = -12\frac{19}{27}$$

Ответы:

• a) 64
• б) 0,512
• в) 0,09
• г) 2,25
• д) $$-12\frac{19}{27}$$