Question

I have theanswer can someone please tell me what they get...
Find the derivative of the function
d(x)=4^-x

Answer 1

What answer did you get?

Answer 2

I got\[\ln4*4^{-1}\]

Answer 3

The only thing was I was not sure if the exponent was -1 or -x

Answer 4

That "-" sign is bothering you again!
It has to be \(-\ln4 \cdot 4^{-x}\), because of the ch.. Hmm, have you learned about the Chain Rule already? (You don't really need it)

Answer 5

ok so then I just need to add negatives to my answer

Answer 6

Yes, but do you know why?

Answer 7

yes I understand I just redid my problem and then I got it thanks:)

Answer 8

yw!