Students learn the explicit formula for geometric sequences through these doodle notes. Additionally, the sum of infinite and finite geometric sequences formulas are introduced with examples for practice. Doodle notes are a great way to activate the creative side of the brain while learning material that often just uses the logical side.
Using Algebra to Find the Sums of Sequences Algebra can help you add a series of numbers (the sum of sequences) more quickly than you would be able to with straight addition. Adding integers, squares, cubes, and terms in an arithmetic or geometric sequence is simple with these algebraic formulas: