Предмет: Алгебра, автор: ViktorC

Пользуясь правилом дифференцирования (uv)'=u'v+uv' вывести формулу дифференцирования (uvw)'

Пользуясь этим правилом найти производную функции y=(2^x)*(x)*(ln(x))

Ответы

Автор ответа: Artem112
2
(uvw)'=((uv)w)'=(uv)'w+(uv)w'=
\\\
=(u'v+uv')w+uvw'=u'vw+uv'w+uvw'

y=2^x\cdot x\cdot \ln x
\\\
y'=(2^x)'\cdot x\cdot \ln x+2^x\cdot x'\cdot \ln x+2^x\cdot x\cdot (\ln x)'=
\\\
=2^x\cdot\ln2\cdot x\cdot \ln x+2^x\cdot 1\cdot \ln x+2^x\cdot x\cdot  \frac{1}{x}=
2^x(\ln2\cdot x\cdot \ln x+ \ln x+1)
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