Question

Найдите производную функции.
$f(x) = 3sin(4x - 5)$
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Answer 1

Ответ:

$f'(x) = 3 \cos(4x - 5) \times (4x - 5)' = \\ = 3 \cos(4x - 5) \times 4 = \\ = 12 \cos(4x - 5)$