Question

Calcule o valor da expressão abaixo:

[-1+(-1 /2 -1/4+1)elevado a 2]÷(-3/4)

Answer 1

$\mathtt{[-1+(-\frac{1}{2}-\frac{1}{4}+1)^2]\div(-\frac{3}{4})} \\ \\ \mathtt{[-1+(-0,5 -0,25+1)^2]\div(-0,75)} \\ \\ \mathtt{[-1+(-0,75+1)^2]\div(-0,75)} \\ \\ \mathtt{[-1+(0,25)^2]\div(-0,75)} \\ \\ \mathtt{[-1+0,0625]\div(-0,75)} \\ \\ \mathtt{-0,9375 \div (-0,75 ) } \\ \\ \boxed{\mathtt{Resposta: 1,25}}$