\(\frac{5^4.20^4}{25^5.4^5}=\frac{5^4\left(1.15^4\right)}{\left(19^5.1\right).4^5}=\frac{5^4.15^4}{19^5.4^5}\)
\(\frac{5^4.20^4}{25^5.4^5}=\frac{\left(5.20\right)^4}{\left(25.4\right)^5}=\frac{100^4}{100^5}=\frac{1}{100}.\)
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tính
\(\dfrac{5^4.20^4}{25^5.4^5}\)
\(\dfrac{5^4.20^4}{25^5.4^5}\) giúp mình nhé
Tính nhanh nếu có thể:
b) \(\dfrac{5^4.20^4}{25^5.4^5}\)
bài 1 :tính bằng cách hợp lí nhất : a) \(\frac{4}{5}\left(\frac{7}{2}+\frac{1}{4}\right)^2\)
b) \(\frac{5^4.20^4}{25^5.4^5}\)
bài 2 : tìm x và y biết x:2 = y: (-5) và x-y =10
bài 3 tìm x,y,z biết \(\left(x-\frac{1}{5}\right)^{2004}+\left(y+0,4\right)^{100}+\left(z-3\right)^{678}=0\)
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,\(\dfrac{\sqrt{3^2+\sqrt{39^2}}}{\sqrt{7^2+\sqrt{91^2}}}1\)
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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}-2.8right):left(3dfrac{4}{5}+0,2right) 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(-...
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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.\(\left(\dfrac{3}{4}-0,25\right):\left(2\dfrac{1}{4}-1\dfrac{1}{6}\right)\)