I am learning how to expand binomial coefficients using Pascal's Triangle.
All the examples I see are when 'a' and 'b' are positive. What is the trick in terms of signs when either 'a' or 'b' is negative?
I am learning how to expand binomial coefficients using Pascal's Triangle.
All the examples I see are when 'a' and 'b' are positive. What is the trick in terms of signs when either 'a' or 'b' is negative?