We start with the following well-known identity: Let’s give a proof of this identity: Note that we may rewrite the series as: Next, we switch the order of integration and summation: [For those o… more →
Mathematics in HKCEE, HKAL, and Beyondkoopakoo wrote 1 year ago: We start with the following well-known identity: Let’s give a proof of this identity: Note tha … more →