\(\dfrac{5^4.20^4}{25^5.4^5}=\dfrac{5^4.\left(4.5\right)^4}{25^5.4^5}=\dfrac{5^4.4^4.5^4}{25^5.4^5}=\dfrac{\left(5^4.5^4\right).4^4}{25^5.4^5}=\dfrac{25^4.4^4}{25^5.4^5}=\dfrac{1.1}{25.4}=\dfrac{1}{100}\)
tính
\(\dfrac{5^4.20^4}{25^5.4^5}\)
Tính nhanh nếu có thể:
b) \(\dfrac{5^4.20^4}{25^5.4^5}\)
\(\frac{5^4.20^4}{25^5.4^5}\)
Tính nhanh nếu có thể:
a) \(\dfrac{15}{12}+\dfrac{5}{13}-\dfrac{3}{12}-\dfrac{18}{13}\)
b) \(\dfrac{5^4.20^4}{25^5.4^5}\)
c) \(\dfrac{8^{10}+4^{10}}{8^4+4^{11}}\)
1. Tính \(\dfrac{5^4.20^4}{25^5.4^5}\)
2. Tìm x :
a ) -x - \(\dfrac{2}{3}\) = \(\dfrac{-6}{7}\)
b ) \(\left|x+1\right|=2\)
c ) x2 = 16
a,\(\dfrac{5^4.20^4}{25^5.4^5}\) b,\(\dfrac{\left(5^4-5^3\right)^3}{125^4}\) c,\(\sqrt{\left(2,5-0,7\right)^2}\) d,\(\dfrac{\sqrt{3^2+\sqrt{39^2}}}{\sqrt{7^2+\sqrt{91^2}}}1\)
Ai biết rút gọn biểu thức này k ạ??
Giups mình với!!! Cảm ơn nhiều ạ!!
bài 1: tính
a) \(\dfrac{5^4.20^4}{25^5.4^5}\) b)3,5-\(\left(-\dfrac{2}{7}\right)\) c)\(\left(\dfrac{11}{12}:\dfrac{33}{16}\right).\dfrac{3}{5}\) d)\(15.\left(-\dfrac{2}{3}\right)^2.-\dfrac{7}{3}\) e)\(\left(\dfrac{9}{25}-2.8\right):\left(3\dfrac{4}{5}+0,2\right)\) g)\(\dfrac{21}{47}+\dfrac{9}{45}+\dfrac{26}{47}+\dfrac{4}{5}\) h)\(\dfrac{15}{12}+\dfrac{5}{13}-\dfrac{3}{12}-\dfrac{18}{13}\) j)12.\(\left(-\dfrac{2}{3}\right)^2+\dfrac{4}{3}\) k)\(\dfrac{13}{25}+\dfrac{6}{41}-\dfrac{38}{25}+\dfrac{35}{41}-\dfrac{1}{2}\) l)12,5.\(\left(-\dfrac{5}{7}\right)+1,5.\left(-\dfrac{5}{7}\right)\) m)\(\sqrt{\dfrac{64}{25}}.3\dfrac{1}{2}-\dfrac{3}{5}.3\dfrac{1}{2}\)
tính
\(\dfrac{5^4.20^4}{25^4.4^5}\)
( -2)3.\(\left(\dfrac{3}{4}-0,25\right):\left(2\dfrac{1}{4}-1\dfrac{1}{6}\right)\)
(\(\dfrac{3}{7}\))5 * \(\dfrac{\left(2.5\right)^{4^{ }}.7^5}{15^4.20^2}\)
