Question

simplifique as expressões me ajudem​

Answer 1

→ Cálculo :

$\\{{\boxed{\begin{array}{lr}{{5^{0}-(-1)- \left ( \frac{1}{2} \right )^{-2} }=} \\\\{{{ 1+1-\left ( \frac{1}{2} \right )^{-2} } } =}\\\\{1+1-2^{2} =}\\\\{1+1-4=}\\\\{2-4=}\\\\\boxed{\red{ -2}} \\ \end{array}}}}$