Các câu hỏi tương tự
1x3/3x5 + 2x4/5x7 + 3x5/7x9 + ............... +49x51/99x101
1x3/3x5 + 2x3/5x7 + 3x5/7x9 + ............... +49x51/99x101
2/1x3+2/3x5+2/5x7+....2/99x101
2/1x3+2/3x5+2/5x7+...+2/99x101
1/1x3+1/3x5+1/5x7+.......+1/99x101
\(\dfrac{2}{1x3}\)+\(\dfrac{3}{3x5}\)+\(\dfrac{2}{5x7}\)+....+\(\dfrac{2}{99x101}\)
giúp mình với ạ
a)1/5x6+1/6x7+1/7x8+...1/49x50
b)2/1x3+2/3x5+2/5x7+...+2/99x101
A = 3/1x3 + 3/3x5 + 3/5x7 +.....+3/99x101
Tính kết quả
Giúp mk gấp vs , mk tick cho nha!
tinh tong 99x100+100x101+............+199x200
1x3+3x5+5x7+.............+99x101
21x23+23x25+25x27+.............+111x113
1x4+4x7+7x10+.............+100x103
1x5+5x9+9x13+ .......................+101x105