题目<br>答案解析<br>查看更多优质解析<br>举报<br>∫ x(1-x)^99 dx<br>=∫ [(1-x)^99-(1-x)^100] dx<br>=- (1-x)^99/99 +(1-x)^100/100 + C<br>解析看不懂?求助智能家教解答<br>查看解答