若f(x_(0))=0,则x_(0)为f(x)的极值点.A. 对B. 错
6.设f(x)在[0,1]上有二阶导数,且f(x)>0,f(x)>0,f(0)=0, 取x_(i)in(0,1),数列(x_{n)}满足(x_(n+1)-x_(
设f(x0)=2,则mathop(lim)limits_(triangle x→0)(f(x_(0))-f(x_(0)-3triangle x))/(trian
(1)设f(x_(0))>0,f^prime(x_(0))=0,f^primeprime(x_(0))存在,且f^primeprime(x_(0))+f(x_(
(判断题,2分)x_(0)是函数f(x)的拐点,则必有f(x_(0))=0()A. 正确B. 错误
若f(x_(0))=0,则点x_(0)一定是函数f(x)的极值点。A. 对B. 错
设(X_(1),X_(2),X_(3),X_(4))是总体X的简单随机样本,X~N(0,4),F=C(X_(1)^2)/(X_(2)^2+X_{3)^2+X_(
13、单选 lim_(x to x_{0)}f(x)=f(x_(0))是函数y=f(x)在x_(0)处连续的()条件.A. 充分B. 必要C. 充要D. 无关
(B) (int )_({x)_(1)}^(x_{3)}pi [ (f)^2(x)-(g)^2(x)] dx.-|||-(C)(int )_(x)^(x_{3)
【例7】设f(x)为连续函数,则f(x_(0))=0是f(x)在点x_(0)处取得极值的()A. 充分条件B. 必要条件C. 充分必要条件D. 非充分非必要条件