1.8 Sum of an Infinite Convergent Geometric Series

Key ideas

• Modelling real-life situations with the structure of arithmetic and geometric sequences and series allows for prediction, analysis and interpretation.

• Patterns in numbers inform the development of algebraic tools that can be applied to find unknowns.

• I can us the formulae for the n th term and the sum of the first n terms of the sequence.

• I can demonstrate and explain the use of modulus notation and the meaning of |r|<1 in terms of geometric se

• 
  

• |r| < 1

• 
  

• and modulus notation