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C4 growth and decay help (differentiation)

Need a hand on 4ci just cant seem to figure out where to start :frown:
Reply 1
Original post by Mitul106
Need a hand on 4ci just cant seem to figure out where to start :frown:


Doesn't seem to have attached?
Reply 2
Did you forget to tell us/attach the question or is my browser just not seeing it.
Reply 3
Broadly a decay question has a statement that differential wrt t of some thing (A) = -kt and hence you end up integrating 1/t >>> ln t + c

writing c=ln A enables you to use the initial conditions to generate something like A=A0e±ktA = A_0e^{\pm kt}

The plus or minus depending on whether we have growth or decay
Reply 4
I forgot to post an attachment aha sorryy i reposted

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