tính:
\(\frac{10^4.81-16.15^2}{4^4.675}\)
tính
\(\frac{10^4.81-16.15^2}{4^4.675}\)
\(\frac{10^4.81-16.15^2}{4^4.675}=\frac{\left(2.5\right)^4.3^4-2^4\left(3.5\right)^2}{2^8.5^2.3^3}=\frac{2^4.3^2.5^2\left(5^2.3^2-1\right)}{2^8.5^2.3^3}=\frac{255-1}{16.3}=\frac{14}{3}\)
$\frac{10^4.81-16.15^2}{4^4.675}=\frac{10^4.3^4-4^2.15^2}{4^4.5^4}=\frac{30^4-60^2}{20^4}=\frac{900^2-60^2}{400^2}=\frac{20^2\left(45^2-3^2\right)}{20^2.2^2}=\frac{2016}{4}=504$104.81−16.15244.675 =104.34−42.15244.54 =304−602204 =9002−6024002 =202(452−32)202.22 =20164 =504
\(\frac{10^4.81-16.15^2}{4^4.675}\)
\(\frac{10^4.81-16.15^2}{4^4.675}\)
= \(\frac{2^4.5^4.3^4-2^4.3^2.5^2}{4^4.3^3.5^2}\)
= \(\frac{2^4.5^2.3^4-2^4.3^2.5^2}{2^8.3^3.5^2}\)= \(\frac{2^4.5^2.3^2\left(3^2-1\right)}{2^8.3^3.5^2}\)= \(\frac{8}{2^4.3}=\frac{1}{6}\)
mấy bài khó còn làm dc ko lẽ ko làm dc bài này hay quân kiến thức cũ vậy bn
\(\frac{10^4.81-16.15^2}{4^4.675}=\frac{2^4.5^4.3^4-2^4.3^2.5^2}{2^8.3^3.5^2}\)
\(=\frac{2^4.3^2.5^2.\left(5^2.3^2-1\right)}{2^8.3^3.5^2}\)
\(=\frac{25.9-1}{2^4.3}=\frac{225-1}{16.3}=\frac{224}{48}=\frac{14}{3}\)
10^4.81-16.15^2/4^4.675
Tính \(\frac{10^4.81-16.15^2}{4^4.675}\)
\(\frac{10^4.81-16.15^2}{4^4.675}=\frac{\left(2.5\right)^4.3^4-2^4\left(3.5\right)^2}{2^8.5^2.3^3}=\frac{2^4.3^2.5^2\left(5^2.3^2-1\right)}{2^8.5^2.3^3}=\frac{255-1}{16.3}=\frac{14}{3}\)
\(\frac{10^4.81-16.15^2}{4^4.675}=\frac{10^4.3^4-4^2.15^2}{4^4.5^4}=\frac{30^4-60^2}{20^4}=\frac{900^2-60^2}{400^2}=\frac{20^2\left(45^2-3^2\right)}{20^2.2^2}=\frac{2016}{4}=504\)
love forever and only one sai rùi kìa
675= 5^4 cơ mà
Rút gọn biểu thức sau \(A=\frac{10^4.81-16.15^2}{4^4.675}\)
\(A=\frac{10^4\cdot81-16\cdot15^2}{4^4\cdot675}\)
\(=\frac{2^4\cdot5^4\cdot3^3-2^4\cdot3^2\cdot5^2}{2^8\cdot3^3\cdot5^2}\)
\(=\frac{2^4\cdot5^2\cdot3\left(5^2\cdot3-3\right)}{2^8\cdot3^3\cdot5^2}\)
\(=\frac{5^2\cdot3-3}{2^4\cdot3^2}\)
\(=\frac{3\cdot\left(5^2-1\right)}{2^4\cdot3^2}=\frac{24}{48}=\frac{1}{2}\)
các bạn ơi 500 nhân 687= bao nhiêu
Rút gọn
a) A = \(\frac{10^4.81-16.15^2}{4^4.675}\)
\(A=\frac{10^4.81-16.15^2}{4^4.675}=\frac{\left(2.5\right)^4.3^4-2^4.\left(3.5\right)^2}{\left(2^2\right)^4.3^3.5^2}=\frac{2^4.5^4.3^4-2^4.3^2.5^2}{2^8.3^35^2}=\frac{2^4.5^4.3}{2^4.3}=5^4=625\)
\(\dfrac{10^4.81-16.15^2}{4^4.675}\)
\(=\dfrac{2^4\cdot5^4\cdot3^4-2^4\cdot3^2\cdot5^2}{2^8\cdot3^3\cdot5^2}=\dfrac{2^4\cdot3^2\cdot5^2\left(5^2\cdot3^2-1\right)}{2^8\cdot3^3\cdot5^2}\)
\(=\dfrac{1}{16}\cdot\dfrac{1}{3}\cdot\dfrac{224}{1}=\dfrac{224}{48}=\dfrac{14}{3}\)
\(\dfrac{10^4.81-16.15^2}{4^4.675}\)
\(\dfrac{10^4.81-16.15^2}{4^4.675}\)
\(=\dfrac{2^4.5^4.9^2-2^4.3^2.5^2}{2^8.5^4}\)
\(=\dfrac{1.25.9^2-1.3^2.1}{1.1}=1.25.9^2-1.3^2.1\)
\(=1899\)
Chúc bạn học tốt
\(\frac{10^4.81-16.15^2}{4^4.675}\)
ai giúp mình với, mình đang cần gấp, cám ơn nhiều!