Question

Are these derivatives correct?

f(x)=ln(x^3+3)
f' (x)=-2x^2


f(x)=exp(2x^2-1)
f^ (x)=exp(2x^2-1)

Answer 1

for the first one, use the chain rule

Answer 2

Are you sure, isn't the y' of lnx = 1/x?

Answer 3

the derivative of ln(u) = 1/u*u'

Answer 4

technically it is
1/x * x
but the x is not emphasized as much for some odd reason and that reason is not clear until you learn implicit differentiation

for now, your answer couldn't be more wrong

Answer 5

1/x * x ?

Answer 6

1/x * x'

Answer 7

o

Answer 8

did I miss that?

Answer 9

yeah you didn't have the little apostrophe in the original

Answer 10

O I did

Answer 11

you're right

Answer 12

oh well

Answer 13

fkin ey

Answer 14

u = x^3 + 3

Answer 15

did you have a drink too much

Answer 16

haha just half a bottle of rum