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画PLC电路图0LD X0 1AND X1 2ANI X2 3OR X3 4OUT Y1 5OUT Y2 6LD X4
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相关问题
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hand=0;printf("\x12ld\x12ld",f1,f2);
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(1)-3(x+1)^2=-6 (2)1/4x^2+x-2=0 (3)y^2=2y-1 (4)3x=-4x^2-1 (5
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①﹙x+1/3﹚2=4②x2-x-6=0③y2-3y+1=0
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证明下列直线互相平行.（1）3x+5y-4=0,6x+10y+7=0(2)2x-4y+3=0,x-2y=0(3)2x-1
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3x²-6x+4=0, 2x²+1=3x, y²-4√3 y+12=0, (x-3)(2x
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{0.6x-0.4y=1.1,0.2x-0.4y=2.3;
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解下列方程组（1）{y=1-x,4x-3y=5 （2）{2x-y=3,3x+y-1=0 （3）2x+3y=-4,2x-4
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解方程．（1）0.3x-0.4x-0.5x=0.6（2）5x-2.5x+3.5x=-18（3）y−12y−13y＝1．
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马上就要答案,（x-1）2+2x（x-1）=0 2x2-4x-5=0 -3x2-4x+4=0 2(y+4)2+y(y+4
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5/12x-x/4=1/3 0.5x-0.7=6.5-1.3x 3(x-7)+5(x-4)=15 (y-1)/2=2-(