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(
x
α
)
′
=
α
x
α
−
1
(
e
x
)
=
e
x
(
a
x
)
′
=
a
x
ln
a
(
ln
x
)
′
=
1
x
进一步有
(
ln
|
x
|
)
′
=
1
x
(
log
a
x
)
′
=
1
ln
a
⋅
x
(
sin
x
)
′
=
cos
x
(
cos
x
)
′
=
−
sin
x
(
tan
x
)
′
=
sec
2
x
(
cot
x
)
′
=
−
csc
2
x
(
arcsin
x
)
′
=
1
1
−
x
2
(
arccos
x
)
′
=
−
1
1
−
x
2
(
arctan
x
)
′
=
1
1
+
x
2
(
arccot
x
)
′
=
−
1
1
+
x
2
(
ln
(
x
+
x
2
+
a
2
)
)
′
=
1
x
2
+
a
2
(
ln
|
x
−
x
2
+
a
2
|
)
′
=
1
x
2
−
a
2
(
x
x
)
′
=
x
x
(
ln
x
+
1
)
(
x
x
)
′
=
(
e
x
ln
x
)
′