若连续函数y=f(x)在x0点不可导,则曲线y=f(x)在(x0,f(x0))点没有切线.
有如下程序: Private Sub Commandl_Click() Dim a As Single Dim b As Single a=2:b=4 Call CS(a,b)End Sub Sub CS(x As Single,y As Single) t=X x=t\y y=t Mod y End Sub 程序运行后,单击命令按钮,a和b的值分别为A.0 0B.1 1C.0 2D.1 2
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有以下程序int sub(int n){ return(n%10+n/10); }main(){ int x,y; scanf("%d",&x); y=sub(sub(x)); printf("%d\n",y);}若运行时输入:248,程序的输出结果是
有如下程序。 Private Sub Commandl_Click() Dim a As Single Dim b As Single a=5:b=4 Call Sub1 ( a,B)End Sub Sub Subl(x As Single, y As Single) t=x x=t\y y = t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B.1 1C.2D.1 2
在窗体上画1个命令按钮,名称为Command1,然后编写如下程序: Dim Flag As Boolean Private Sub Command1_Click() Dim intNum As Integer intNum=InputBox("请输入:") If Flag Then Printf(intNum) End If End Sub Function f(x As Integer)As Integer If X<10 Then Y=X Else Y=X+10 End If f=Y End Function Private Sub Form_MouseUp(Button As Integer,Shift As Integer,X As Single,Y As Single) Flag=True End Sub 运行程序,首先单击窗体,然后单击命令按钮,在输入对话框中输入5,则程序的输出结果为( )。A.0B.5C.15D.无任何输出
有如下程序: Private Sub Command1 Click() Dim a As Single Dim b As Single a=5:b=4 Call S(a,B)End Sub Sub S(x As Single,y As Single) t=x x=t\y y=t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B.1 1C.2 2D.1 2
设函数f(x)在点x=a处可导,则函数|f(x)|在点x=a处不可导的充分条件是( )A.f(a)=0且f′(a)=0 B.f(a)=0且f′(a)≠0 C.f(a)>0且f′(a)> D.f(a)<0且f′(a)<
设函数f(x)具有2阶连续导数,若曲线y=f(x)过点(0,0)且与曲线y=^x在点(1,2)处相切,则=________.