积分过程 呃呃呃额额的得得得得得得
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积分过程 呃呃呃额额的得得得得得得
积分过程 呃呃呃额额的得得得得得得
积分过程 呃呃呃额额的得得得得得得
∫sinx*(1-x)dx=-cos1*0+1-∫cosxdx (应用分部积分法)
=1-(sin1-sin0)
=1-sin1.