今年华师的试卷考了许多方程组的内容,这挺意外的。本来以为会考许多方面知识(很担心)1.定义(1)A x = 0的基础解系(2)矩阵的本征向量空间(3)(4)(5)二次型f(x1,x2,...,xn)的典范型(6)正定矩阵2.证明:n次多项式最多不能超过n个根(反证法,其截短的系数矩阵是类似于Vandermonder矩阵)3.单位基e1,e2,e3,e4,V中线性变换p,p(e1),p(e2),p(e3),p(e4)(具体数值记不得),求
第一部分:40分Evolutions of learning theories and technologies show internal and autonomous dynamics that lead toward mutual fertilization. Pressure in western countries to survive in a scientifically and economically changing, competitive world activates