1.1x3.3x5.5x7.7x9.9x11.11x13.13x15.15x17.17x19.19=多少
model:Min=x1+x2+x3+x4+x5+x6+x7+x8+x9+x10+x11+x12+x13+x14+x15
2x2/1x3+4x4/3x5+6x6/5x7+8x8/7x9+10x10/9x11+12x12/11x13 仔细看看
1/1x3+1/3x5+1/5x7+1/7x9+1/9x11=?
2/1x3+2/3X5+2/5x7=2/7x9+2/9x11
因式分解:X15+X14+X13+X12+X11+X10+X9+X8+X7+X6+X5+X4+X3+X2+X+1
已知1-1/3=2/1x3,计算1/1x3+1/3x5+1/5x7+1/7x9+1/9x11=
1/1X3+1/3X5+1/5X7...1/17X19+1/19X21=
方程13−2x11−2x+17−2x15−2x=19−2x17−2x+11−2x9−2x
关于用泰勒级数计算sin(x)sin(x)=x-(x3/3!)+(x5/5!)-(x7/7!)+(x9/9!)最后一项绝
求解最佳方案X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12
min=2*x11+x12+3*x13+x14+2*x15+4*x21+2*x22+x23+3*x24+x25+2*x3
计算:1/1x3+1/3x5+1/5x7+1/7x9+……+1/2011x2013