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Applied Mathematics · Ch 5 — Sequences and Series

Relationship Between AM and GM

5.5

Relationship Between AM and GM

For any two positive numbers, the arithmetic mean (AM) and geometric mean (GM) are not independent — they follow a strict and beautiful inequality. The AM is always greater than or equal to the GM, with equality only when the numbers are equal. This relationship, AM≥GMAM \ge GM, is one of the most powerful tools in mathematics, forming the bedrock for many inequality proofs and optimization problems. Under …