Question

Calcule o valor de cada uma das expressões ( abra a imagemm , me ajudem plis e não façam gracinha nas respostas, preciso mt )

Answer 1

Explicação passo a passo:

C)

$-2\cdot \left(\frac{3}{2}\right)^3+1^{15}-\left(-2\right)^1$

$-2\left(\frac{3}{2}\right)^3+1-\left(-2\right)^1$

$-2\left(\frac{3}{2}\right)^3+1-\left(-2\right)$

$-2\left(\frac{3}{2}\right)^3+1+2$

$-\frac{27}{4}+1+2$

$-\frac{27}{4}+3$

$MMC$

$\frac{3\cdot \:4-27}{4}$

$\frac{-15}{4}$

D)

$\left(\left(-\frac{5}{3}\right)^{-1}+\left(\frac{5}{2}\right)^{-1}\right)^{-1}$

$\frac{1}{\left(-\frac{5}{3}\right)^{-1}+\left(\frac{5}{2}\right)^{-1}}$

$\frac{1}{-\left(\frac{5}{3}\right)^{-1}+\left(\frac{5}{2}\right)^{-1}}$

$\frac{1}{-\frac{3}{5}+\frac{2}{5}}$

$\frac{1}{-\frac{1}{5}}$

$-\frac{1}{\frac{1}{5}}$

$-\frac{5}{1}$

$-5$

E)

$\left(3^{-1}-\left(-3\right)^{-1}\right)^{-1}$

$\frac{1}{3^{-1}-\left(-3\right)^{-1}}$

$\frac{1}{3^{-1}\cdot \:2}$

$\frac{1}{\frac{2}{3}}$

$\frac{3}{2}$

F)

$6\left(\frac{2}{3}\right)^2+4\left(-\frac{3}{2}\right)^{-2}$

$\frac{8}{3}+\frac{16}{9}$

$\frac{24}{9}+\frac{16}{9}$

$\frac{24+16}{9}$

$\frac{40}{9}$