\(\frac{101+100+99+...+2+1}{101-100+99-...+3-2+1}=\frac{101\left(101+1\right):2}{1+1+1+...+1+1\left(51cs1\right)}=\frac{5151}{51}=101\)
tinh nhanh
a) A= 33(1-2/3)(1-2/5)...(1-2/99)
b) B=101+100+99+98+...+3+2+1/101-100+99-98+...+3-2+1
c) C=423134x846267-423133/423133x846267+423134
Tính nhanh: \(\frac{101+100+99+98+..+3+2+1}{101-100+99-98+...+3-2+1}\)
tinh nhanh (98/99+99/100+100/101)(1/12-1/3+1/4)
tính :\(\frac{\text{101+100+99+98+...+3+2+1}}{\text{101-100+99-98+...+3-2+1}}\)
mình đang cần gấp , ai làm nhanh mình tick cho
tính :
\(\frac{101+100+99+98+...+3+2+1}{101-100+99-98+...+3-2+1}\)
nhớ trình bày đầy đủ . ai nhanh nhất tớ tick
tinh nhanh
a,48x36+24x28
b,47x12+53x13
c,A=101+10+99+........+3+2+1/101-100+99-98+...........3-2+1
Tính nhanh
a)A=\(\frac{101+100+99+98+...+3+2+1}{101-100+99-98+...+3-2+1}\)
b)\(\frac{3737.43-4343.37}{2+4+6+...+100}\)
rút gọn :\(\frac{101+100+99+98+.,.+3+2+1}{101-100+99-98+...+3-2+1}\)
Tính nhanh:
101+100+........+3+2+1/101-100+100-99+...........+3-2+1