2021=
\( \frac{1}{20^2}= \)
\( \frac{1^2}{3^2}= \)
\( \frac{1}{3^2}= \)
\( \frac{1}{4^2}= \)
\( \frac{20^4}{31^4}= \)
\( \frac{1}{5^2}= \)
\( \frac{10^5}{17^5}= \)
\( \frac{1}{6^7}= \)
\( \frac{12^3}{23^3}= \)
\( \frac{1^5}{6^5}= \)
\( \frac{2^4}{7^4}= \)
\( \frac{1^7}{9^7}= \)
\( \frac{2^9}{11^9}= \)
\( \frac{3^6}{8^6}= \)
\( \frac{7^{10}}{9^{10}}= \)
\( \frac{3^8\times a^8}{x^8\times5^8}= \)
\( \frac{4^3}{5^3\times7^3}= \)
\( \frac{4^6}{a^6\times x^6}= \)
\( \frac{6^8\times7^8}{17^8}= \)
\( \frac{a^3}{3^3\times5^3}= \)
a'+b' son correctas