Question

Calcule X - Y

X= 10 ^ -1

Y= -(-5)^ -2

Answer 1

Resposta:

\frac{7}{50}

Explicação passo-a-passo:

$x=10^{-1} =\frac{1}{10^{1} }=\frac{1}{10}\\y=-(-5)^{-2}=-\frac{1}{-5^{2} }=-\frac{1}{25}\\ \\x-y=\frac{1}{10}-(-\frac{1}{25} ) =\frac{1}{10}+\frac{1}{25} =\frac{7}{50}$