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Evaluate the following by converting into exponential form: log_32 2 - Mathematics

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Question

Evaluate the following by converting into exponential form:

log32 2

Evaluate
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Solution

Given: log32 2

Step-wise calculation:

Let x = log32 2.

By definition of logarithm:

32x = 2

Write 32 as 25:

(25)x = 2 

⇒ 25x = 21 

⇒ 5x = 1

⇒ `x = 1/5`

`log_(32) 2 = 1/5`, equivalently `32^(1/5) = 2`.

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Chapter 7: Logarithms - Exercise 7A [Page 140]

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Nootan Mathematics [English] Class 9 ICSE
Chapter 7 Logarithms
Exercise 7A | Q 4. (viii) | Page 140
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