\( \left(\frac{1}{20}\right)^{-7}= \)
\( 20^{-7} \)
\( 20^7 \)
\( \left(\frac{1}{60}\right)^{-4}= \)
\( 60^4 \)
\( 60^{-4} \)
\( \)\( \left(\frac{1}{3}\right)^{-4}= \)
\( 27 \)
\( 3^4 \)
(120)−7= \left(\frac{1}{20}\right)^{-7}= (201)−7=
207 20^7 207
(160)−4= \left(\frac{1}{60}\right)^{-4}= (601)−4=
604 60^4 604
(13)−4= \left(\frac{1}{3}\right)^{-4}= (31)−4=
34 3^4 34