2010年考研数学三真题及答案解析.doc

. 2010年考研数学三真题一.选择题1. 若则=A0 B1 C2 D32. 设是一阶线性非齐次微分方程的两个特解，若常数使是该方程的解，是该方程对应的齐次方程的解，则For personal use only in study and research; not for commercial useA B C D3. 设函数f(x),g(x)具有二阶导数，且若是g(x)的极值，则f(g(x)在取极大值的一个充分条件是For personal use only in study and research; not for commercial useA B C D4设则当x充分大时有Ag(x)h(x)f(x) Bh(x)g(x)f(x) For personal use only in study and research; not for commercial useCf(x)g(x)h(x)