0.8:x=1.2:4 10:x=5:3/4 x/3=4.8/24 1.8:5.4=x:5.7 25:0.4=75:x
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/06/28 02:43:41
0.8:x=1.2:4 10:x=5:3/4 x/3=4.8/24 1.8:5.4=x:5.7 25:0.4=75:x x/2.5=18/4.5 解比例,
0.8:x=1.2:4
(4/5)*4=(6/5)x
x=8/3
10:x=5:3/4
10*(3/4)=5x
x=3/2=1.5
x/3=4.8/24
x=4.8/8=0.6
1.8:5.4=x:5.7
1:3=x:5.7
x=5.7/3=1.9
25:0.4=75:x
25x=75*0.4
x=1.2
x/2.5=18/4.5
x/2.5=4
x=4*2.5=10
(4/5)*4=(6/5)x
x=8/3
10:x=5:3/4
10*(3/4)=5x
x=3/2=1.5
x/3=4.8/24
x=4.8/8=0.6
1.8:5.4=x:5.7
1:3=x:5.7
x=5.7/3=1.9
25:0.4=75:x
25x=75*0.4
x=1.2
x/2.5=18/4.5
x/2.5=4
x=4*2.5=10
0.8:x=1.2:4 10:x=5:3/4 x/3=4.8/24 1.8:5.4=x:5.7 25:0.4=75:x
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
2x+3x+4x+5x+x+6x+7x=100
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
解比例 0.8:x=1.2:4 10:x=5:3分之4 3分之x=24分之4.8 1.8:5.4=X:5.7 25:0.