Question

When do you use substitution? How do you do this question
dy/dx y=3xe^sqrt(x)

Answer 1

u substitution?

Answer 2

yes

Answer 3

e^(u) * u'

Answer 4

do you have to use product rule... I just started calc, and its a little confusing

Answer 5

Yes so (3x)'*(e^sqrt(x)) + (3x)(e^sqrt(x))'

Answer 6

Chain rule / u substitution for when you take deriv of e^sqrtx

Answer 7

wait so do i have to d/dx sqrt(x) for (3x)'*(e^sqrt(x)) + (3x)(e^sqrt(x))'