Question

Preciso para hoje. Por favor me responda rapido

Answer 1

Resposta:

$\boxed{\boxed{2021^{-1}=\dfrac{1}{2021}}}$

Explicação passo-a-passo:

$\dfrac{2021^{4}.2021^{-2}}{2021^{3}} =\dfrac{2021^{4-2}}{2021^{3}}=\dfrac{2021^{2}}{2021^{3}} =2021^{2-3}=\boxed{2021^{-1}=\dfrac{1}{2021}}$