Пошаговое объяснение:
y=6tgx*cos(7x)
y'=(6/cos²x)*cos(7x)+6tgx*(-sin(7x)*7=(6cos(7x))/cos²x-42tgx*sin(7x)
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Пошаговое объяснение:
y=6tgx*cos(7x)
y'=(6/cos²x)*cos(7x)+6tgx*(-sin(7x)*7=(6cos(7x))/cos²x-42tgx*sin(7x)