By this, I assume you mean I cannot use the starting values of A and N in that formula? Because in a different question where I non-starting values for A and N, my method did actually work.
Hi all,
I have a question concerning the derivative of the formula of the number of nuclei. I hope I've posted this in the right section, I'm new here :P. Anyway, in the question, the given values are:
At a certain time t, there is an amount of radioactive Br-82. The activity A is 7.4*1014 Bq...