Question 845522
Question Number 1, depends on how accurately you want it.  Golden ratio is {{{(1+sqrt(5))/2}}}.


You can answer question number 2 yourself.  Take 1, 1; as the first two terms.
Sum them.  This is the term number 3.  Sum the last two terms; this is term number 4.  Sum the last two terms; this is term number 5... , continue this way for as long as you want or need.