题目内容
函数y=x(x-
)的导数为( )
1 |
x2 |
A.x+
| B.x-
| C.2x+
| D.2x-
|
∵y=x(x-
)=x2-
,
∴y′=2x+
.
故选:C.
1 |
x2 |
1 |
x |
∴y′=2x+
1 |
x2 |
故选:C.
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题目内容
1 |
x2 |
A.x+
| B.x-
| C.2x+
| D.2x-
|
1 |
x2 |
1 |
x |
1 |
x2 |