Pré-álgebra Exemplos Simplificar e avaliar expressões

Simplificar

$2 y^{- 1}$

Etapa 1

Reescreva a expressão usando a regra do expoente negativo $b^{- n} = \frac{1}{b^{n}}$ .

$2 \frac{1}{y}$

Etapa 2

Combine $2$ e $\frac{1}{y}$ .

$\frac{2}{y}$

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Simplificar e avaliar expressões

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$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$