There are four solutions of indefinite integration in paper: direct integration, the first exchangeable integration, the second exchange - able integration, parcel integration.
分析了不定积分的四种基本求解方法：直接积分、第一换元法、第二换元法、分部积分法。
There are four solutions of indefinite integration in paper: direct integration, the first exchangeable integration, the second exchange - able integration, parcel integration.
分析了不定积分的四种基本求解方法：直接积分、第一换元法、第二换元法、分部积分法。
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