作者ONIspirit (嘎)
看板trans_math
标题[考古] 98台大
时间Mon Feb 22 20:09:32 2010
find the arc length of the curve y = ln(1-x^2)
from x = 0 to x = 1/4
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写到後面积不出来 囧
麻烦各位了~
感谢
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