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ÍõССÑà(Edstrayer´ú·¢): ½ð±Ò+1 2015-12-15 02:47:15
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>> int(sqrt(1-sin(2*x)),x,0,pi/2) ans = -2+2*2^(1/2) |

3Â¥2015-12-14 11:14:52
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