\(F=\frac{15.3^{11}+4.27^4}{9^7}=\frac{5.3.3^{11}+4.\left(3^3\right)^4}{\left(3^2\right)^7}=\frac{5.3^{12}+4.3^{12}}{3^{14}}=\frac{3^{12}.\left(5+4\right)}{3^{14}}=\frac{3^{12}.9}{3^{12}.9}=1\)

\(G=\frac{5.2^{13}.4^{11}-16^9}{\left(3.2^{17}\right)^2}\)

\(G=\frac{5.2^{13}.\left(2^2\right)^{11}-\left(2^4\right)^9}{3^2.2^{34}}\)

\(G=\frac{5.2^{13}.2^{22}-2^{36}}{3^2.2^{34}}\)

\(G=\frac{5.2^{35}-2^{36}}{3^2.2^{34}}\)

\(G=\frac{2^{35}.\left(5-2\right)}{3^2.2^{34}}\)

\(G=\frac{2^{35}.3}{3^2.2^{34}}=\frac{2}{3}\)

a) \(\frac{9}{11}:\frac{-16}{15}+\frac{7}{11}:\frac{-16}{15}=\left(\frac{9}{11}+\frac{7}{11}\right):\frac{-16}{15}\)

                                              \(=\frac{16}{11}:\frac{-16}{15}=-\frac{15}{11}\)

b) \(\frac{17}{9}:\frac{13}{4}-\frac{7}{9}:\frac{13}{4}=\left(\frac{17}{9}-\frac{7}{9}\right):\frac{13}{4}\)

                                       \(=\frac{10}{9}:\frac{13}{4}=\frac{40}{117}\)

Mấy bài này không thể tính nhanh được bạn à, có thể viết sai đề chăng?

~Học tốt~

thanks

lên mạng tra

\(B=\frac{2^{19}.27^3+15.4^9.9^4}{6^9.2^{10}+12^{10}}\)

\(B=\frac{2^{19}.3^9+3.5.2^{18}.3^8}{2^9.3^9.2^{10}+3^{10}.2^{20}}\)

\(B=\frac{2^{19}.3^9+3^9.5.2^{18}}{2^{19}.3^9+3^{10}.2^{20}}\)

\(B=\frac{2^{18}.3^9.\left(2+5\right)}{2^{19}.3^9\left(1+3.2\right)}\)

\(B=\frac{7}{2.7}\)

\(B=\frac{1}{2}\)

\(C=\frac{2^{13}.4^{11}-16^9}{\left(3.2^{17}\right)^2}\)

\(C=\frac{2^{13}.2^{22}-2^{36}}{3^2.2^{34}}\)

\(C=\frac{2^{35}-2^{36}}{3^2.2^{34}}\)

\(C=\frac{2^{35}\left(1-2\right)}{3^2.2^{34}}\)

\(C=\frac{-2}{9}\)

\(D=\frac{4^7.2^8}{3.2^{15}.16^2-5.2^2.\left(2^{10}\right)^2}\)

\(D=\frac{2^{14}.2^8}{3.2^{15}.2^8-5.2^2.2^{20}}\)

\(D=\frac{2^{14}.2^8}{3.2^{23}-5.2^{22}}\)

\(D=\frac{2^{22}}{2^{22}\left(3.2-5\right)}\)

\(D=1\)

me too