單項(xiàng)選擇題

設(shè),則k的值是:()

A.1/6
B.1
C.1/4
D.1/3


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1.單項(xiàng)選擇題

的值是:()

A.2
B.0
C.1/2
D.1/4

2.單項(xiàng)選擇題

極限的值是:()

A.0
B.1
C.2
D.不存在

4.單項(xiàng)選擇題

設(shè)f(x)=(1+e)/(2+e),則x=0是f(x)的:()

A.可去間斷點(diǎn)
B.跳躍間斷點(diǎn)
C.無窮間斷點(diǎn)
D.振蕩間斷點(diǎn)

5.單項(xiàng)選擇題

矩陣的特征值是:()

A.
B.
C.
D.

8.單項(xiàng)選擇題

設(shè)行列式D1=,D2=,若D1=D2,則λ的取值為:()

A.2,-1
B.0,2
C.1,-1
D.0,1

9.單項(xiàng)選擇題

矩陣的秩是:()

A.1
B.2
C.3
D.4

10.單項(xiàng)選擇題

矩陣的逆矩陣是:()

A.
B.
C.
D.