积分∫x³/(x²+y²)^(3/2)dx=和∫y/(x²+y²)dx=如何积分

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积分∫x³/(x²+y²)^(3/2)dx=和∫y/(x²+y²)dx=如何积分积分∫x³/(x²+y²)^(3/2)d

积分∫x³/(x²+y²)^(3/2)dx=和∫y/(x²+y²)dx=如何积分
积分∫x³/(x²+y²)^(3/2)dx=和∫y/(x²+y²)dx=如何积分