5.2^13.4^11-16^9chia tất cả (3.2^17)2 ; 4^6.9^5+6^9.^120 chia tất cả 8^4.3^12-6^11 [ có j ko hiểu cứ hỏi em nhé) 19/08/2021 Bởi Gianna 5.2^13.4^11-16^9chia tất cả (3.2^17)2 ; 4^6.9^5+6^9.^120 chia tất cả 8^4.3^12-6^11 [ có j ko hiểu cứ hỏi em nhé)
$\dfrac{5.2^{13}.4^{11} – 16^9}{(3.2^{17})^2}$ $= \dfrac{5. 2^{35} – 2^{36}}{3^2 . 2^{34}}$ $= \dfrac{2^{35} (5 – 2)}{3^2.2^{34}}$ $= \dfrac{2.3}{9}$ $= \dfrac{2}{3}$ $\dfrac{4^6.9^5 + 6^9 .120}{8^4.3^{12} – 6^{11}}$ $= \dfrac{2^{12}. 3^{10} + 2^{12}.3^{10}.5}{2^{12} . 3^{12} – 2^{11} . 3^{11}}$ $= \dfrac{2^{12}. 3^{10}. (1 + 5)}{2^{11}.3^{11} . (2.3 – 1)}$ $= \dfrac{2.6}{3.5}$ $= \dfrac{4}{5}$ Bình luận
$\dfrac{5.2^{13}.4^{11} – 16^9}{(3.2^{17})^2}$
$= \dfrac{5. 2^{35} – 2^{36}}{3^2 . 2^{34}}$
$= \dfrac{2^{35} (5 – 2)}{3^2.2^{34}}$
$= \dfrac{2.3}{9}$
$= \dfrac{2}{3}$
$\dfrac{4^6.9^5 + 6^9 .120}{8^4.3^{12} – 6^{11}}$
$= \dfrac{2^{12}. 3^{10} + 2^{12}.3^{10}.5}{2^{12} . 3^{12} – 2^{11} . 3^{11}}$
$= \dfrac{2^{12}. 3^{10}. (1 + 5)}{2^{11}.3^{11} . (2.3 – 1)}$
$= \dfrac{2.6}{3.5}$
$= \dfrac{4}{5}$