Question

11. Calculati:
a) (-2)⁵
b) (-2)⁴
c) 5‐¹
d) (-5)‐²
e) (-3)²;
f) (-1/3)²
g) (1/2019)-¹ i) (-2/5)-² j) (-4/13)⁰​

Answer 1

Explicație pas cu pas:

Mult succes în continuare!

Answer 2

Răspuns:

[tex]a) (-2)^{5}=-32 \\\\ b) (-2)^{4}=16\\\\ c) 5^{-1}=\frac{1}{5^{1}}=\frac{1}{5} \\\\ d) (-5)^{-2}=\frac{1}{(-5)^{2}}=\frac{1}{25} \\\\ e) (-3)^{2}=9 \\\\ f) (-\frac{1}{3})^{2}= \frac{(-1)^{2}}{3^{2}}=\frac{1}{9} \\\\ g) (\frac{1}{2019})^{-1}= \frac{1}{(\frac{1}{2019})^{1}} = \frac{1}{\frac{1}{2019}}= 2019\\\\ i) (-\frac{2}{5})^{-2}= \frac{1}{(-\frac{2}{5})^{2}}=\frac{1}{\frac{(-2)^{2}}{5^{2}}} =\frac{5^{2}}{(-2)^{2}} = \frac{25}{4}=6\frac{1}{4}\\\\ j) (-\frac{4}{13})^{0}=1 [/tex]