Evaluate
\frac{49}{4a^{2}}
Expand
\frac{49}{4a^{2}}
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\left(\frac{2}{7}\right)^{-2}a^{-2}
Expand \left(\frac{2}{7}a\right)^{-2}.
\frac{49}{4}a^{-2}
Calculate \frac{2}{7} to the power of -2 and get \frac{49}{4}.
\left(\frac{2}{7}\right)^{-2}a^{-2}
Expand \left(\frac{2}{7}a\right)^{-2}.
\frac{49}{4}a^{-2}
Calculate \frac{2}{7} to the power of -2 and get \frac{49}{4}.
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