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3 years ago

Calculate $\left(\frac{9}{7}\right)^{2} \left(\frac{2}{7}\right)^{-2}$.

Mathematics

1 answer:

DerKrebs [107]3 years ago

6 0

$\left(\frac{9}{7}\right)^{2} \left(\frac{2}{7}\right)^{-2}$

$(\frac{81}{49} )( \frac{49}{4} )$

$( \frac{81}{1} )( \frac{1}{4} )$

$\frac{81}{4}$

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