1. Potenciação 1. Calcule: (a) (-4)^3 (b) ((5)/(2))^4 (c) (-1)^25 (d) ((3)/(4))^0 (e) -3^2 2. Determine se as expressões são verdadeiras (V) ou falsas (F) (a) 2^3cdot 2^4=2^7 (b) 5^6div 5^2=5^3 (c) (3^2)^4=3^8 (d) (-2)^5=-32 (e) 7^0=0 3. Simplifique: (a) a^5cdot a^3 (b) (x^7)/(x^4) (c) (b^2)^5 (d) ((2x)^3)/(4x^2) (e) (m^4cdot n^3)^2

1. Potenciação
1. Calcule:
(a) $$(-4)^{3} = -64$$
(b) $$(\frac {5}{2})^{4} = \frac{625}{16}$$
(c) $$(-1)^{25} = -1$$
(d) $$(\frac {3}{4})^{0} = 1$$
(e) $$-3^{2} = -9$$
2. Determine se as expressões são verdadeiras $$(V)$$ ou falsas $$(F)$$
(a) $$2^{3}\cdot 2^{4}=2^{7}$$ (V)
(b) $$5^{6}\div 5^{2}=5^{3}$$ (V)
(c) $$(3^{2})^{4}=3^{8}$$ (V)
(d) $$(-2)^{5}=-32$$ (V)
(e) $$7^{0}=0$$ (F)
3. Simplifique:
(a) $$a^{5}\cdot a^{3} = a^{8}$$
(b) $$\frac {x^{7}}{x^{4}} = x^{3}$$
(c) $$(b^{2})^{5} = b^{10}$$
(d) $$\frac {(2x)^{3}}{4x^{2}} = 2x$$
(e) $$(m^{4}\cdot n^{3})^{2} = m^{8}n^{6}$$