Автор - alina19991703

Решите уравнение f`(x)=0. f(x)=x-sin2x. f(x)=x+ctg3x. f(x)=cos2x+x

Ответ

Автор - odes1
f'(0)=1-2cos2x=1-2cos0=1-2=-1
f'(0)=1+(-3/sin^2(3x))=1+0=1
f'(0)=-2sin2x+1=-2sin0+1=1

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