Answer
$\frac{c^{6}}{a^{18}b^{6}}$
Work Step by Step
=$(\frac{a^{-1}b^{3}c}{a^{2}b^{4}})^{6}$
=$(\frac{a^{-1+1}b^{3-3}c}{a^{2+1}b^{4-3}})^{6}$
=$(\frac{c}{a^{3}b})^{6}$
=$\frac{c^{6}}{a^{18}b^{6}}$
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