来自唐新桥的问题
设y是x的函数,[sec(x+y)]^2=0两边对x求导数等于
设y是x的函数,[sec(x+y)]^2=0两边对x求导数等于
1回答
2020-07-29 21:19
设y是x的函数,[sec(x+y)]^2=0两边对x求导数等于
设y是x的函数,[sec(x+y)]^2=0两边对x求导数等于
很高兴为您
[sec(x+y)]^2=0两边对x求导数为
2sec(x+y)sec(x+y)tan(x+y)(1+dydx)=0
即为2[sec(x+y)]^2tan(x+y)(1+dydx)=0
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