SOLUTION: {{{S=a+ar+ar^2+ar^3+ar^(n-1)}}}, what happens to the sum when r=1?

SOLUTION: {{{S=a+ar+ar^2+ar^3+ar^(n-1)}}}, what happens to the sum when r=1?

Algebra.Com

Question 957525: , what happens to the sum when r=1?
Answer by satyareddy(3) (Show Source): You can put this solution on YOUR website!
when r=1

=>a+a+a+a+a=5a
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