The product rule for two functions is given by
Using induction, prove that for any number of functions, the generalized product rule (given to you) holds.
Start with your base case. Assume. Work up.
represents the set of positive integers. 1, 2, 3, ...
represents the set of real numbers.
1, 905, -763, 0.13244, 0, 2/5, anything that is real (read: not imaginary; no i)
represents "the sum of." So,
represents "the product of." So,