Intro to Sequences

Lesson by Mike McGarry
Magoosh Expert

Summary
The essence of sequences in mathematics, particularly for the GMAT exam, revolves around understanding their ordered nature, discerning patterns, and applying algebraic formulas to solve related problems.
• Sequences are ordered lists of numbers following identifiable patterns, crucial for solving GMAT problems.
• Notation involves representing sequences with a lowercase letter and individual terms with numerical subscripts, where 'n' denotes the position in the sequence.
• Algebraic formulas for sequences allow for the determination of any term in the sequence, providing a method to solve for specific terms or differences between terms.
• Understanding basic sequence patterns, such as sequences of integers, odd numbers, even numbers, multiples, and powers, is foundational.
• Practice problems in the GMAT context often involve algebraic sequences defined by fractions or other operations, requiring the test taker to find term values or differences.
Chapters
00:00
Introduction to Sequences
00:55
Notation and Representation
01:39
Algebraic Formulas for Sequences
04:42
Basic Patterns and Practice Problem

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