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2 years ago

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Which expression is equivalent to b^-2/ab^-3 assume a=0 b=0

2 answers:

PtichkaEL [24]2 years ago

6 0

we have

$\frac{b^{-2}} {ab^{-3}}$

we know that

$\frac{b^{-2}} {ab^{-3}} =(\frac{1}{b^{2}})( \frac{1}{a})( b^{3})\\ \\=\frac{b^{3}}{ab^{2}} \\ \\= \frac{b}{a}$

therefore

<u>the answer is the option </u>

$\frac{b}{a}$

andrey2020 [161]2 years ago

3 0

B^-2/ab^-3 = b^-2/b^-3 x 1/a = b^[-2-(-3)] x 1/a = b x 1/a = b/a

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