1. 27. (AM) Binomial Part 1What we did in 2 hours: Last week, we started on a new chapter, Binomial Theorem. We learnt a new formula to expand (a+b)n for large integer power n without having to expand via "rainbow method". We discovered that by swapping a and b, we can get the expansion in ascending/descending power of x. We also noticed that some of the expansion need us to do expansion selectively to get the coefficient that we want.