Question

3-Calcule o valor das expressões:
Imagem sem legenda

Answer 1

.

$( - \dfrac{1}{2} ) {}^{2} + ( - 1) {}^{4}$

$\dfrac{1}{4} + 1$

$\dfrac{1 + 4}{4}$

$\dfrac{5}{4}$

.

$( - 2) {}^{3} \times ( - 2) {}^{3}$

$( - 2) {}^{3 + 3}$

$( - 2) {}^{6}$

.

$( - 1 \dfrac{1}{2} ) \times ( - 1) {}^{5}$

$( - \dfrac{3}{2} ) \times ( - 1)$

$\dfrac{3}{2}$

.

$( - \dfrac{1}{2} ) {}^{2} \times ( \dfrac{3}{2} ) - \dfrac{8}{27} \div - \dfrac{1}{27}$

$\dfrac{1}{4} \times \dfrac{3}{2} - \dfrac{8}{27} \times \dfrac{27}{1}$

$\dfrac{3}{8} + \dfrac{216}{27}$

$\dfrac{3}{8} + 8$

$\dfrac{3 + 64}{8}$

$\dfrac{67}{8}$

.

$(0.1) {}^{2} \div - 2 + 1.5 \times ( - 0.1) {}^{2}$

$0.01 \div - 2 + 1.5 \times 0.01$

$\dfrac{1}{100} \div - 2 + 0.015$

$\dfrac{1}{100} \times - \dfrac{1}{2} + \dfrac{15 \div 5}{1000 \div 5}$

$- \dfrac{1}{200} + \dfrac{3}{200}$

$\dfrac{2 \div 2}{200 \div 2}$

$\dfrac{1}{100}$