若a≥x≥3,化简|x-7|+|5-x|
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若a≥x≥3,化简|x-7|+|5-x|若a≥x≥3,化简|x-7|+|5-x|若a≥x≥3,化简|x-7|+|5-x|
若a≥x≥3,化简|x-7|+|5-x|
若a≥x≥3,化简|x-7|+|5-x|
若a≥x≥3,化简|x-7|+|5-x|
若a≥x≥3,化简|x-7|+|5-x|
若多项式2x*x*x*x-3x*x*x+ax*x+7x+b能被x*x+x-2整除,求a:b
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填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
已知5(3-2x)≥16-7x,化简|-x-3|-4|2x+5|
(1) 化简:2/(x+1)(x+3)+2/(x+3)(x+5)+2/(x+5)(x+7)+...+2/(x+2009)(x+2011)(2) 若对于一切不为0且不为-2的实数x,(5x+4)/x(x+2)=A/x+B(x+2),求常数A,B的值
3(2x+1)≥2(4x+1)+7,化简|-x-2|-|5x+4|
解关于x的不等式3x-5a/x-1≥2x-3a/x-1
解关于x的不等式3x-5a/x-1≥2x-3a/x-1
若集合P={x|3-x≥根号x-1}与M={|x-a|
3≤|8-x| |x+1|>2-x |x+3|7|x+1| x^2-6|x|+9>0 |x-1|+|x+2|≥5 (1)方法
1.-X^2+X≥3x+12.x(x+9)≤3(x-3)3.X^2-2x<2X^2+2解题格式一定要写好哦4.-x+1/2x+5≥05.(m-2)x>1-m6.X^2-(a-3)X-3a<07.X^2-(a+1/a)x+1>0
若 5≥x≥3 化简|x-7|+|5-x|
若A=大括号x|(1-x)/(x-3)≥0,函数f(x)=4^x-3.2^(x+1)+5 其中x∈A,1求函数f(x)的定义域2求函数的值域
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!)+.
若x的绝对值 >x, 则( ) A. x≥0 B. x>0 C. x
matlab中a(x)=x^4+3x^3+9x-18 b(x)=x^5-4x^3-18x+7 c(x)=x^7+6x^5+9x^3-5x^2-2 d(x)=x^9-8x^7+6x^5-4x^4+d(x)=x^9-8x^7+6x^5-4x^4+6x^2+3 求e(x)=a(x)*b(x)*c(x)*d(x)
化简-7x-{3x-2[x-a(x-1)]-3(2x-2)}