Các câu hỏi tương tự
1x3/3x5 + 2x3/5x7 + 3x5/7x9 + ............... +49x51/99x101
Tính
a. 3/(3x5) + 3/(5x7) + 3/(7x9) +... + 3/(99x101)
b. 5/(3x5) +5/(5x7) +5/(7x9) +...+ 5/(99x101)
1x3+3x5+5x7+...+99x101
1/3x5+1/5x7+1/7x9+........+1/99x101
1/3x5 + 1/5x7 + 1/7x9 +...+ 1/99x101
Tính nhanh: 3/1x3+3/3x5+3/5x7+...+3/49x51
2/1x3+2/3x5+2/5x7+....2/99x101
2/1x3+2/3x5+2/5x7+...+2/99x101
1/1x3 + 1/3x5 + 1/5x7 + 1/7x9