matlab解不定方程组

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一个圆柱体的底面半径是2dm,它的侧面展开图是一个正方形,这个圆柱体的高是多少分米? 要使多项式mx^3-2x^2+3x-4x^3+5x^2-nx不含三次项及一次项,则m= n= 1.一个圆柱体的侧面展开是一个边长为3.14分米的正方形,圆柱的底面半径是多少分米 求箭头所示拉力与G的关系. There were many people in the supermarket (改为同义句)The supermarket( )( ) there were many people in the zoo改为否定句 把一个圆柱体的侧面展开,得到一个正方体,这个圆柱体的底面半径是0.它的高是( )分米? 已知函数fx=x-1-ln x (1)求曲线y=fx在点(2,f(2))处的切线方程,(2)求函数已知函数fx=x-1-ln x(1)求曲线y=fx在点(2,f(2))处的切线方程,(2)求函数fx的极值(3)…… 已知函数fx=ax+ln x (a∈R) 1.若a=2,求曲线y=fx在x=1处的切线方程 The war between the two countries is far from _A.over B.end C.fishing D.over选D,为什么? The war between the two countries is very t以t打头的单词 加工一个零件的时间由原来的8分减少到现在的5分,工作效率提高了百分之几?算式? 谁知道The Earth is caught in the middle of an intergalactic war between two races of robots, 急需13道六年级奥数题!~~~求助!大家来帮帮忙@@ The Earth is caught in the middle of an intergalactic war between two races of robots,的中文意思 13.甲、乙两人行走在公路上,甲走的路程比乙多25%,乙所走的时间比甲多10%,甲、乙两人的速度比是多少? world war one -chinahow did china involved in ww1?what are the effects of ww1 to china?political,enconomical,govertmental etc.did china furthr loss land?whatever u know7-8 sentense.pls answer in english..as long as it makes sense and express the idea 这道题应该选哪一个,到底要保留几位小数 甲、乙两种商品的成本共250元,商品甲按30%的利润定价,商品乙按20%的利润定价,后来应顾客要求,两种商品按定价的9折出售,仍获利33.5元.问:甲种商品的成本是多少元? Statement of Purpose 和 Personal Statement 的区别是什么? 已知函数f(x)=ln(x+1)-ax(a∈R).当a=0时,过点P(-1,0)做曲线y=f(x)的切线,求切线方程. prepare a statement of the variances,state five possible causes of an adverse labor rate varianceexplain the possible reason for inter-relationship between materials variance and labour variance 圆的面积怎么算不要公式,要举例子怎么算,如:6厘米直径的园的一半怎么算圆周率取几位,给算式 有大、小两个圆,大圆直径比小圆直径多28%,那么小圆的面积比大圆的面积少百分之几?(保留一位小数) (1)要使下列方程5x+3y=4m,4x-5y=8m-3,6x-2y=9m同时成立,求常数m的值(需要过程答案)(2)解方程组x/3=y/4=z/5 ,x-2y+3z=30(需要过程答案) 224 14如图,ABED与三角形DEC的面积比为6:7,BE和EC得长度分别是多少厘米?http://hi.baidu.com/%C1%F5%CA%AB%CA%ABs/album/item/3a7e191b50a78a834bedbce4.html在这里 wo de zhu ce biao bei gai le ,dao chu dou shi luan ma ,wo gai zen me ban a wo sm dou bu zhi dao wo ba ke le dou jie le ni zi dao 翻译成中文die er :wo zhi dao ,wo fa de xin xi ni dou kan jian le wo mei ci dou zhao bu dao lv pen you zen me ban 若函数y=根号下(kx平方-6x+k+8)的定义域为[-7,1],求实数k的值