admin2019-06-28  61

问题

选项

答案ln(1+χ)ln(1-χ)-ln(1-χ2)=ln(1+χ)ln(1-χ)-ln(1+χ)(1-χ) =ln(1+χ)[ln(1-χ)-1]-ln(1-χ), 由ln(1+χ)=χ-[*]+o(χ4), ln(1-χ)=-χ-[*]+o(χ4)得 ln(1+χ)[ln(1-χ)-1] [*] ln(1+χ)[ln(1-χ)-1]-ln(1-χ)~[*] 故[*]

解析
转载请注明原文地址:https://kaotiyun.com/show/rdV4777K
0

相关试题推荐
最新回复(0)