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Express the Following as a Single Logarithm: 2 Log 3 − 1 2 Log 16 + Log 12 - Mathematics

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Question

Express the following as a single logarithm:

`2  "log"  3 - (1)/(2) "log"  16 + "log"  12`

Sum

Solution

`2  "log"  3 - (1)/(2) "log"  16 + "log"  12`

= `2  "log"  3 - (1)/(2) "log"  2^4 + "log" (2^2 xx 3)`

= `2  "log"  3 - (1)/(2) xx 4  "log"  2 + "log" 2^2 + "log"  3`

= 2 log 3 - 2 log 2 + 2 log 2 + log 3
= 3 log 3
= log 33
= log 27.

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Expansion of Expressions with the Help of Laws of Logarithm
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Chapter 10: Logarithms - Exercise 10.2

APPEARS IN

Frank Mathematics [English] Class 9 ICSE
Chapter 10 Logarithms
Exercise 10.2 | Q 5.03
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