Thực hiện phép tính:
\(\left(1+\frac{1}{1.3}\right).\left(1+\frac{1}{2.4}\right).\left(1+\frac{1}{3.5}\right)...\left(1+\frac{1}{20.22}\right)\)
Thực hiện phép tính :
A=\(\left(1+\frac{1}{1.3}\right)\left(1+\frac{1}{2.4}\right)\left(1+\frac{1}{3.5}\right)...\left(1+\frac{1}{2015.2017}\right)\)
Thực hiện phép tính: \(\frac{1}{1.3}+\frac{1}{3.5}+\frac{1}{5.7}+....+\frac{1}{19.21}\)
tính A=1/2(1+1/1.3)(1+1/2.4)(1+3.5).....(1+1/2017.2018)
Tính S = 1.3/3.5 + 2.4/5.7 + 3.5/7.9 + ... + ( n-1)( n+1) / (2n-1)(2n+1) + ... + 1002.1004/2005.2007
1/(1.3)+1/(2.4)+1/(3.5)+1/(4.6)+...+1/(2021.2023)
Tính A=(1+1/1.3)(1+1/2.4)(1+1/3.5)..........(1+1/2007.2009)
tra loi chi tiet minh tick cho
1/1.3+1/2.4+1/3.5+.....+1/97.99+1/98.100-49/99=
Tính giá trị biểu thức:
1/ 1.3 + 1/2.4 + 1/3.5 + 1/4.6 + 1/5.7 + 1/6.8 + 1/7.9 + 1/8.10