(3/8+1/15)x8+7/15(简算)
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(3/8+1/15)x8+7/15(简算)(3/8+1/15)x8+7/15(简算)(3/8+1/15)x8+7/15(简算)(3/8+1/15)x8+7/15=3+8/15+7/15=3+1=4
(3/8+1/15)x8+7/15(简算)
(3/8+1/15)x8+7/15(简算)
(3/8+1/15)x8+7/15(简算)
(3/8+1/15)x8+7/15
=3+8/15+7/15
=3+1
=4
(3/8+1/15)x8+7/15(简算)
3x8+4x8+5x8+6x8+7x8+8x8+9x8+10x8 的简便运算
简算3/4x[(7/15-1/5)/2/3].(58+27)x8+19/27.9.56-4.875-1/8+1.44
(6/5+8/5)X24还有 8/3-15/7X8/3
3+5=x8+8+7+6/
(-5/12)x8/15x3/2x(-2/3)x0x(-1)= (-1)x(-5/4)x8/15x3/2x(-2/3)x0x(-1)= 的计算过程.(-5/12)x8/15x1/2x(-2/3)
(-5)x8x(-7)x(-0.25)= (-5/12)x8/15x3/2x(-2/3)x0x(-1)= (-1)x(-5/4)x8/15x3/2x(-2/3)x0x(-1)=
简便计算 1.0.125X8.8 2.10.1X8.3 3.(2.5+25)X4 4.3.57X3.7+3.57X7.3
min 3x1+16x2+16x3+50x4+39x5+52x6+45x7+10x8+15x9s.t.56x1+113x4+109x6+179x7+56x8+34x9>=9049x2+45x5>=6060x1+46x3+46x8>=8025x1+7x6+8x7+8x8+5x9>=9040x1+275x4+110x6+55x7>=60x1
线性问题在lingo中的表示minZ=5*x1+7*x2+5*x3+4*x4+6*x5+5*x6+5*x7+3*x8 限制条件25*x1+36*x2+32*x3+15*x4+31*x5+28*x6+22*x7+12*x8>=105.69;然后x1到x8必须是1或者0.这个怎么在lingo软件中正确表示出来
(-1/12)x8/15x(-2/3)x(-9/4)怎么计算呀
下面各题怎么简便就怎么算(1) (3/8+1/15)x8+7/15 (2) 3/4x5/9-1/9x3/4 (3) 2/5÷7+1/7x8/15 (4) 1/2+3/8+7/8x7 (5) 1÷6+5x1/6
(5x―15)x8=72
(5x-15)X8=72
5分之3x8.8十0.
找规律:1x8+1=9 12x8+2=98 123x8+3=987……123456x8+6=?
1x8+1=9,12x8+2=98,123x8+3=987,1234x8+4=9876照样子继续四道这样的题?
(1-1/2x4)x(1-3/3x5)x(1-5/4x6)x(1-7/5x7)x(1-9/6x8)x(1-11/7x9)x(1-13/8x10)x(1-15/9x11)