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Logarithm of a Power

How to solve the logarithm of a power (loga xm): formula, 3 examples, and their solutions.

FormulaLog of 1 (loga 1)

FormulaLog of Itself (loga a)

Formulaloga xm

Examplelog2 8

Examplelog3 1/81

Examplelog3 2 = a, log3 32 = ?