Odpowiedź :
Odpowiedź:
a)
4^-3 = (1/4³) = 1/64
b)
3^-4 = 1/81
c)
(1/2)^-3 = 2³ = 8
d)
(3/4)^-2 = (4/3)² = 16/9 = 1 7/9
e)
2^3 * 2^4 : 2^5 = 2^7 : 2^5 = 2² = 4
f)
5^4 * 5^-2 = 5² = 25
g)
3^6 * 9 : 3^5 = 3^6 * 3² : 3^5 = 3^8 : 3^5 = 3³ = 27
h)
6^4 * 36^-1 : 6^-1 = 6^4 * (6²)^-1 : 6^-1 = 6^4 * 6^-2 : 6^-1 = 6² : 6^-1 = 6² * 6^1 = 6³ = 216
Szczegółowe wyjaśnienie:
Odpowiedź:
[tex]a)\ \ 4^{-3}=(\frac{1}{4})^3=\frac{1}{64}\\\\b)\ \ 3^{-4}=(\frac{1}{3})^4=\frac{1}{81}\\\\c)\ \ (\frac{1}{2})^{-3}=2^3=8\\\\d)\ \ (\frac{3}{4})^{-2}=(\frac{4}{3})^2=\frac{16}{9}=1\frac{7}{9}\\\\\\e)\ \ \dfrac{2^3*2^4}{2^5}=\dfrac{2^{3+4}}{2^5}=\dfrac{2^7}{2^5}=2^{7-5}=2^2=4\\\\\\f)\ \ \dfrac{5^4*5^{-2}}{5^3}=\dfrac{5^{4-2}}{5^3}=\dfrac{5^2}{5^3}=5^{2-3}=5^{-1}=(\frac{1}{5})^1=\frac{1}{5}[/tex]
[tex]g)\ \ \dfrac{3^6*9}{3^5}=\dfrac{3^6*3^2}{3^5}=\dfrac{3^{6+2}}{3^5}=\dfrac{3^8}{3^5}=3^{8-5}=3^3=27\\\\\\h)\ \ \dfrac{6^4*36^{-1}}{6^{-1}}=\dfrac{6^4*(6^2)^{-1}}{6^{-1}}=\dfrac{6^4*6^{-2}}{6^{-1}}=\dfrac{6^2}{6^{-1}}=6^{2-(-1)}=6^{2+1}=6^3=216[/tex]