>
数学
>
∫
0
a
(3x
2
-x+1)dx=______.
人气:205 ℃ 时间:2020-05-21 05:45:02
解答
∵∫
0
a
(3x
2
-x+1)dx
=(x
3
-12x
2
+x)|
0
a
=a
3
-12a
2
+a.
故答案为:a
3
-12a
2
+a.
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