Mathematics
Senior High
Solved
公式使って定積分を求めようと思ったんですけど答えが違います。公式の使い所間違ってますかね?
2
2
(2x-5)3 Ax
2 (2x-5)3 da
2 [8 (2x-514] 2
12/₤x (-118 /
=2
(2)S_^(2x-5)dx=S_2(8x60x150x125)dx レース
=2S(-60x-125)dx=2|-20x-125x
=2(-160-250)=-820
72
[別解] S(2x-5)'dx=112(2x-5) 122
(−1)-(-9)*
25x]
-1) (S
(
E--(S)\
=
=-820
8
Answers
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