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Edstrayer: ½ð±Ò+3 2017-02-03 03:23:35
Áîz=2xÔò£¬ÒòΪ

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3Â¥2017-02-02 16:21:41
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ÒýÓûØÌû:
3Â¥: Originally posted by alober at 2017-02-02 16:21:41
Áîz=2xÔòI=2\int_{0}^{\frac{\pi}{2}}(\sin x)^{\alpha}\sin(2kx)dx£¬ÒòΪ
-i\int_{0}^{\pi}(2\cos\frac{t}{2})^pe^{it(q+\frac{p}{2}+1)}dt = \int_{0}^{1}(1+x)^px^qdx+e^{iq\pi}\int_{0}^{1}(1-x)^px^qdx
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