Finite Geometric Series

Math - Grade 10 / Patterns and Algebra

Sample Question

The sum formula of a finite generic geometric series, 
a+ar+ar2+ar3+...+arn-1 , is:

  • [% S_n=\frac{a_1\left(1-r^n\right)}{1-r} %]
  • [% S_n=\frac{a_1\left(1+r^n\right)}{1-r} %]
  • [% S_n=\frac{a_1\left(1-r^{n-1}\right)}{1-r} %]
  • [% S_n=\frac{a_1\left(1-r^n\right)}{1+r} %]

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Math - Grade 10

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