用定积分的换元法计算积分:[tex=6.071x2.786]tkvB/yDwaVhsElN27LV5tzID2QVOPB5oaZ9yC7sK5ziNPY5q+WWiK7IgjibxXmNg[/tex]
用定积分的换元法计算积分:[tex=6.071x2.786]tkvB/yDwaVhsElN27LV5tzID2QVOPB5oaZ9yC7sK5ziNPY5q+WWiK7IgjibxXmNg[/tex]
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