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Intro to Sequences

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Summary
A sequence is an ordered list of numbers, each following a discernible pattern, crucial for understanding and solving GRE exam questions.
  • Sequences are infinite and follow relatively easy patterns for the purposes of the GRE exam.
  • Notation for sequences involves representing the sequence with a lowercase letter and individual numbers with a numerical subscript.
  • An algebraic formula for a sequence can define an entire infinite sequence, allowing for the calculation of any term's value.
  • Practice problems in sequences often involve finding the value of a term, the sum or difference of terms, or identifying divisibility properties of terms.
  • Basic patterns in sequences include sequences of all positive integers, odd numbers, even numbers, multiples of a number, perfect squares, and powers of a number.
Chapters
00:04
Introduction to Sequences
00:55
Notation and Representation
01:39
Algebraic Definition of Sequences
03:51
Practice with Sequences
04:42
Basic Patterns and Problem Solving
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