A=2000/2001+2001/2000,B=2000/2001+2001/2002
so sánh 1999*2000/1999*2000+1 và 2000*2001/2000*2001+1
Tìm x, biết :
a, \(\left(\frac{1}{1\cdot2\cdot3}+\frac{1}{2\cdot3\cdot4}+...+\frac{1}{98\cdot99\cdot100}\right)x=-3\);
b, \(\left(\frac{\frac{2000}{1}+\frac{1999}{2}+...+\frac{1}{2000}}{\frac{1}{2}+\frac{1}{3}+...+\frac{1}{2001}}\right)x=\frac{-1}{5}\).
c,\(\left(\frac{\frac{2000}{1}+\frac{1999}{2}+...+\frac{1}{2000}+2000}{1+\frac{1}{2}+\frac{1}{3}+...+\frac{1}{2001}}\right):x=\frac{-2001}{2002}\).
so sanh phân số: 1999*2000/1999*2000+1 và 2000*2001/2000*2001+1
so sánh 1999/2000 + 2000/2001 và 1999+2000/2000+2001
A=2000/2001 + 2001/2000 ; B=2000/2001+2001/2002
khong quy dong. So sanh A va B
So sánh: A=1999/2000+2000/2001 và B=1999+2000/2000+2001
A=2000/2001+2001/2002
B=2000+2001/2001+2002
không quy đồng mẫu số so sánh A=2000/2001+2001/2002
B=2000/2001+2001/2002