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2Â¥2015-12-14 10:46:23
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ÍõССÑà(Edstrayer´ú·¢): ½ð±Ò+1 2015-12-15 02:47:15
>> int(sqrt(1-sin(2*x)),x,0,pi/2)

ans =

-2+2*2^(1/2)
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ÍõССÑà(Edstrayer´ú·¢): ½ð±Ò+1 2015-12-15 02:47:30
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