1/1x3+1/3x2+1/2x5+1/5x3+1/3x7+...+1/99x50
a)1/1x3+1/3x5+1/5x7+...+1/Xx(x+3)=99/200
b)1/1x3+1/3x5+1/5x7+...+1/Xx(x+2)
1/1x3 + 1/3x5 + 1/5x7 + 1/7x9
1/1x3+1/3x5.............+1/121x123
1/1x3+1/3x5+1/5x7+1/7x9
1/1x3+1/3x5+1/5x7+1/7x9 = ?
1/1x3+1/3x5+......+1/97x99 = ?
1/1x3 + 1/3x5 + ...+ 1/99x101 = ?
1/1x3+1/3x5+1/5x7+1/7x9=1/9x11