LESSON 6:EQUATIONS INVOLVING LOGARITHMS

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Introduction

In your previous Lesson, you discussed the concept of logarithms and the laws of logarithms. You are now going to relate the knowledge acquired to solve equations involving logarithms. In effect you are going to apply the laws of logarithms in solving equations involving logarithms



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Objectives
By the end of the lesson,you will be able to:

Identify equations that require the use of logarithms. Solve equations involving variables that are indices


Lesson Content

Let us consider an equation like 5x=10 Apply the third law of log to make x the subject of the equation. Take log of both sides. log5x=log10 xlog5=log10 x=log10/log5 x=1/0.6990 Template:SUMMARY



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Assignment

solve the equation 3^X equal 15



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