Didn't even make it past question one... I have all the formulas, but I never learned how they were made... So basically, I can't modify them.
It looks so simple!! I would love to be able to do this myself, but I don't know what to do with that 3!!
it works for any and all integers. it is just there to show that the answer repeats itself and infinite number of times. so it works if we add 1 pi, or 2 pi or 3pi or ....
how you deal with the constants depends on the original question. if the question asked for , then you should only choose those integers that cause the solution to fall in that interval, and you are generally expected to list all solutions in this interval, since it is not usually too many.