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[高数128] 常用的e^x凑微分技巧|凑微分|分部积分|三角代换求解
高等数学习题讲解 第128题 根据被积函数的特点, 分子分母同乘 e^x, 然后凑微分换元 再根据被积函数的特点, 进行分部积分, 然后三角代换求解, 最后求得问题的解.
高等数学(上)习题集110/264
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