※ 引述《lenta (若无其事)》之铭言： : -1 2 : (tan x) : S---------- dx = ?? : 2 : 1 + x : 不会解... : 能告诉我要用哪个定理或方式吗?? tan(-1)x=1/(1+x^2) 普通的代换就行了 -- We can be both the God and the Devil Since we're trying to raise the dead against the stream of time --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 218.166.106.10