## precalc 11 Week 2

This week in Precalc 11 we extended our unit to geometric sequences and series.  I learned more formulas and how to find the sum of a term.  we also learned infinite and finite geometric series which introduced the common ratio.

I discovered how to use the infinite geometric series formula to isolate the common ratio.  Multiplying each side by $1-r$ was not something I thought of.