求不定积分sinxcosx/(2+sin^2x) 分母上表示的是(sinx)^2+2要详细步骤昂,谢拉~好的再给追加我算到的结果是0.5ln(4+sin^2x)而答案是0.5ln(2+sin^2x)看看有木有错把,=-0.5不定积分号(1/(5-cos2x))dcos2x=0.5
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![求不定积分sinxcosx/(2+sin^2x) 分母上表示的是(sinx)^2+2要详细步骤昂,谢拉~好的再给追加我算到的结果是0.5ln(4+sin^2x)而答案是0.5ln(2+sin^2x)看看有木有错把,=-0.5不定积分号(1/(5-cos2x))dcos2x=0.5](/uploads/image/z/5188112-8-2.jpg?t=%E6%B1%82%E4%B8%8D%E5%AE%9A%E7%A7%AF%E5%88%86sinxcosx%2F%282%2Bsin%5E2x%29+%E5%88%86%E6%AF%8D%E4%B8%8A%E8%A1%A8%E7%A4%BA%E7%9A%84%E6%98%AF%28sinx%29%5E2%2B2%E8%A6%81%E8%AF%A6%E7%BB%86%E6%AD%A5%E9%AA%A4%E6%98%82%2C%E8%B0%A2%E6%8B%89%7E%E5%A5%BD%E7%9A%84%E5%86%8D%E7%BB%99%E8%BF%BD%E5%8A%A0%E6%88%91%E7%AE%97%E5%88%B0%E7%9A%84%E7%BB%93%E6%9E%9C%E6%98%AF0.5ln%284%2Bsin%5E2x%29%E8%80%8C%E7%AD%94%E6%A1%88%E6%98%AF0.5ln%EF%BC%882%2Bsin%5E2x%EF%BC%89%E7%9C%8B%E7%9C%8B%E6%9C%89%E6%9C%A8%E6%9C%89%E9%94%99%E6%8A%8A%EF%BC%8C%3D-0.5%E4%B8%8D%E5%AE%9A%E7%A7%AF%E5%88%86%E5%8F%B7%EF%BC%881%2F%285-cos2x%29%EF%BC%89dcos2x%3D0.5)
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