Question

Найти f '(0), если f(x)=2x2+sin(x)

Answer 1

f'=4x+cosx

f'(0)=0+1=1

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Answer 2

$f(x)=2x^2+sinx \ f`(x)=4x+cosx \ f`(0)=4cdot0+cos0=0+1=1$