∫0xxsin(x一t)2dt=_______.

admin2019-08-23  1

问题 0xxsin(x一t)2dt=_______.

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答案0xsinu2du+x sinx2

解析 由∫0xxsin(x一t)2dt=x∫0xsin(x—t)2dtx0xsinu2du,得=∫0xsinu2du+x sinx2
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