Các câu hỏi tương tự
\(Tính:\frac{101+101+99+98+...+3+2+1}{101-100+99-98+...+3-2+1}\)
A=101+100+98+97+...+3+2+1/101-100+99-98+...+3-2+1
101+100+99+98+................+3+2+1trên 101-10+99-98+............+3-2+1
101+100+99+98+...+3+2+1/101-100+99-98+...+3-2+1
B=(101+100+99+98+.....+3+2+1) / (101-100+99-98+.......+3-2+1)
B=(101+100+99+98+.....+3+2+1) / (101-100+99-98+.......+3-2+1)
A=101+100+99+98+...+3+2+1/101-100+99-98+...+3-2+1
101 +100+99+98+.........+3+2+1
101-100+99+98+.....+3-2+1
101+100+99+98+...+3+2+1
101-100+99-98+...+3-2+1
Rút gọn S=101+100+99+98+...+3+2+1 :101-100+99-98+...+3-2+1