设M={1,2,3,4,5,6,7,8,9,10},由M到M的一一映射中,有7个数字和自身对应的映射个数是多少

设集合m={1,2,5}.N={2,3,4,5,6},则M∩N= 设m是有理数,求f=|m-2|+|m-4|+|m-6|+|m-8|的最小值 m-2m-3m+4m-5m-6m+7m.2004m=? 设M={1,2,3,4,5,6,7,8,9,10},由M到M的一一映射中,有7个数字和自身对应的映射个数是多少 设m n为自然数,定义m*n=m+(m+1)+(m+2)+(m+3)+.(m+n)①计算4.5*5的值 ②如果m*8=37.8,求m m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m求m的值 设集合M=(1,2,3m-6),N=(-1,3),M交集N=(3),求m. (m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=? 设M>n,用“”填空：(1)m-5（?）n-5; (2)m+4（?）n+4; (3)6m（?）6n 设全集u=﹛3,6,m²-m-1﹜,a=﹛|3-2m|,6﹜,cua=﹛5﹜,求实数m. 设m^2+m-1=0,则-m^3-2m^2+1=___ 设m^2+m-1=0,则m^3+2m^2+99=? 设m^2+m=1,则m^3+2m^2+2007=? 计算：m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m 设m^2+m=1,求m^3+2m^2+2009的值. 设m^2+m-1=0,求m^3+2m^2+2007的值 设m^2+m-1=0,求m^3+2m^2+2005的值