12:4/3 2/9:4/3 3.2:0.8 42:7 25/125 2.48:80 化简比
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12:4/3 2/9:4/3 3.2:0.8 42:7 25/125 2.48:80 化简比
12:4/3 2/9:4/3 3.2:0.8 42:7 25/125 2.48:80 化简比
12:4/3 2/9:4/3 3.2:0.8 42:7 25/125 2.48:80 化简比
12:4/3
=12×3/4:4/3×3/4
=9:1
2/9:4/3
=2/9×9/2:4/3×9/2
=1:6
3.2:0.8
=4:1
42:7
=6:1
25/125
=1:5
2.48:80
=2.48÷8:80÷8
=0.31:10
=31:1000
12:4/3 2/9:4/3 3.2:0.8 42:7 25/125 2.48:80 化简比
4m^4-4m^3+9m^2-12m+4=0怎么解
解方程:3x^4-2x^3-9x^2+12x-4=0
3x^4-2x^3-9x^2+12x-4=0解法
高数函数二价导数习题(1)y=2x^3-9x^2+12x-3(2)y=x(1+立方√x^2)(3)y=x+1/x(4)f(x)=(x-4)^5/3,求f''(0)1.12x-182.(10/9)x^(-1/3)3.2/x^34.-5/9*立方根2
2×3×9×0×4+23-84
1; 2,12,36,80,()2; 1,3,4,1,9,()3; 0,4,16,40,80,()
3x^4-2x^3-9x^2+12x-4=0怎么因式分解的?
6√(3-4m)-3㎡√(3-4m)-8m√(3-4m)-9m+12㎡+2m^3=0
因式分解3x^4-2x^3-9x^2+12x-4=0答案是(x-1)^2(x+2)(3x-2)=0,
0,1,2,3,4,5,6,8,9 0,2,4,6,8,10,12 1,2,3,4,5 7/2=?猜成语
计算(1)6×(-9)6×(-9)=-546×9=54(2)(-4)×6(-4)×6=-244×6=24(3)(-6)×(-1)(-6)×(-1)=66×1=6(4)(-6×0(-6)×0=06×0=0(5)3/2×(-4/9)3/2×(-4/9)=-12/183/2×4/9=12/18(6)(-3/1)×4/1(-3/1)×4/1=-12/13/1×4/1=12/1
8:12 3.2:4/5 4/9:2/3 0.5米:30厘米 求比值化简比:0.3:6/7 32:24 5.6:0.35 3/4:5/8
请问 3.07 ×101-3.07 4.56+7分之3+4.44+7分之4 1.25 ×3.2 ×2.5 【(9+0.25) ×12】/30
(1/3+2/5+3/7+4/9)/(4/3+8/5+12/7+16/9)
0+1+2-3-4+5+6-7-8+9+10-11-12``````-2008+2009=?
13+12+11+10+9+8+7+6+5+4+3+2+1+0=?
1+2+3+4+5+6+7+8+9+10÷11÷12×0=?