\(\frac{10\frac{1}{3}.\left(26\frac{1}{3}-\frac{176}{7}\right)-\frac{12}{11}\left(\frac{10}{3}-1.75\right)}{\frac{5}{\left(91-0.25\right).\frac{60}{11}-1}}\)
tính A= 10\(\frac{1}{3}\)(26\(\frac{1}{7}\).\(\frac{176}{7}\))-\(\frac{12}{11}\)(\(\frac{10}{3}\)-1.75) /(\(\frac{5}{91}\)-0.25).\(\frac{60}{11}\)-1
\(A=\frac{10\frac{1}{3}.\left(26\frac{1}{3}-\frac{176}{7}\right)-\frac{12}{11}.\left(\frac{10}{3}-1.75\right)}{\frac{5}{\left(91-0,25\right).\frac{60}{11}-1}}\)
GIÚP MK NHA MK CẦN GẤP
Tính : \(A=\frac{10\frac{1}{3}\left(26\frac{1}{3}-\frac{176}{7}\right)-\frac{12}{11}\left(\frac{10}{3}-1,75\right)}{\frac{5}{\left(91-0,25\right).\frac{60}{11}-1}}\)
1 , \(c=\frac{10\frac{1}{3}.\left(26\frac{1}{3}-\frac{176}{7}\right)-\frac{12}{11}.\left(\frac{10}{3}-1,75\right)}{\frac{5}{\left(91-0,25\right).\frac{60}{11}-1}}\)
2 , \(A=\frac{0,375-0,3+\frac{3}{11}+\frac{3}{12}}{-0,265+0,5-\frac{5}{11}-\frac{5}{12}}+\frac{1,5+1-0,75}{2,5+\frac{5}{3}-1,25}\)
cac ban giai nhanh giup minh nha! ai nhanh minh k!
Tính giá trị của các biểu thức sau: \(A=\frac{\frac{2}{39}-\frac{1}{15}-\frac{2}{153}}{\frac{1}{34}+\frac{3}{20}-\frac{3}{26}}:\frac{1+\frac{2}{71}-\frac{5}{121}}{\frac{65}{121}-\frac{26}{71}-13}\) \(B=\frac{155-\frac{10}{7}-\frac{5}{11}+\frac{5}{23}}{403-\frac{27}{7}-\frac{13}{11}+\frac{13}{23}}+\frac{\frac{3}{5}+\frac{3}{13}-0.9}{\frac{7}{91}+0.2-\frac{3}{10}}\) \(C=\left(\frac{0.4-\frac{2}{9}+\frac{2}{11}}{1.4-\frac{7}{9}+\frac{7}{11}}-\frac{\frac{1}{3}-0.25+\frac{1}{5}}{1\frac{1}{6}-0.875+0.7}\right):\frac{2014}{2015}\)
1. a) Chứng minh: \(\frac{1}{6}<\frac{1}{5^2}+\frac{1}{6^2}+\frac{1}{7^2}+........+\frac{1}{100^2}<\frac{1}{4}\)
b) Tìm số nguyên a để: \(\frac{2a+9}{a+3}+\frac{5a+17}{a+3}-\frac{3a}{a+3}\)là số nguyên
2. Tính: \(A=\frac{10\frac{1}{3}\left(26\frac{1}{3}-\frac{176}{7}\right)-\frac{12}{11}\left(\frac{10}{3}-1,75\right)}{\frac{5}{91-0,25.\frac{60}{11}-1}}\)
3. Biết rằng: \(1^2+2^2+3^2+...+10^2=385\)
Tính tổng \(S=2^2+4^2+...+20^2\)
Giúp mik nha mik đg rất gấp
Ai làm nhanh nhất mik sẽ tick
Tính hợp lí nếu có thể :
a)A=10/1/2(26/1/3-176/7)-12/11(10/3-175)
b)B=13/84.1,4-2,5.7/180):2/4/9+4/1/2.0,1
c)(1-1/4)(1-1/9)(1-1/16)(1-1/25)...(1-1/10000)
1, Thực hiện phép tính'
\(A=\frac{155-\frac{10}{7}-\frac{5}{11}+\frac{5}{23}}{403-\frac{26}{7}-\frac{13}{11}+\frac{13}{23}}+\frac{\frac{3}{5}+\frac{3}{13}-0,9}{\frac{7}{91}+0,2-\frac{3}{10}}\)
\(B=\frac{30.4^7.3^{29}-5.14^5.2^{12}}{54.6^{14}.9^7-12.8^5.7^5}\)