y=arctan来自x,则x=tany
arctanx′=1／tany′
tany′=(siny/cosy)′=cosycosy-siny(-siny)/cos²y=1/cos²y
则arctanx′=cos²y=cos²宁外完了医y/sin²y+cos²y=1/1+tan²y=1/1+x²
故最终答案是1/1+x²
希望能帮到你
arctanx的导数怎么求
Simone
发布于 2024-08-27 15:11:43
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