x-1/sin(x-1)导数

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x-1/sin(x-1)导数x-1/sin(x-1)导数x-1/sin(x-1)导数[sin(x-1)-(x-1)cos(x-1)]/sin^2(x-1)用公式法套就行了y=v/uy''=(v''u-u''

x-1/sin(x-1)导数
x-1/sin(x-1)导数

x-1/sin(x-1)导数
[sin(x-1)-(x-1)cos(x-1)]/sin^2(x-1)

用公式法套就行了

y=v/u y'=(v'u-u'v)/u^2=(sin(x-1)-cos(x-1)*(x-1))/sin^2(x-1)