Curriculum
General Mathematics — Second Secondary
Unit 1: Real Functions and Curve Sketching
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Unit 2: Exponents, Logarithms and Applications
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Rational Exponents
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Rational Exponents — Lesson quiz
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The Exponential Function and Its Applications
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The Exponential Function and Its Applications — Lesson quiz
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Solving Exponential Equations
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Solving Exponential Equations — Lesson quiz
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The Logarithmic Function
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The Logarithmic Function — Lesson quiz
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Properties of Logarithms
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Properties of Logarithms — Lesson quiz
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Unit 3: Limits
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Unit 4: Trigonometry
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Text lesson
Properties of Logarithms
Properties of Logarithms
The change of base rule
The change of base rule
- When logarithms have different bases
- we change them to a common base c (with c > 0 and c ≠ 1):
loga b = logc b / logc a
- This rule is used when the number is not an integer power of the base. A special case is loga b = 1 / logb a.
Properties of Logarithms · 2 / 5