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Evaluate the following by converting into exponential form: log_(sqrt(3)) 9 - Mathematics

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Question

Evaluate the following by converting into exponential form:

`log_(sqrt(3)) 9`

Evaluate
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Solution

Given: `log_(sqrt(3)) 9`

Step-wise calculation:

Let `log_(sqrt(3)) 9 = x`. 

Then `(sqrt(3))^x = 9`. 

Write `sqrt(3) = 3^(1/2)`, 

So `(3^(1/2))^x = 3^(x/2)` 

`(3^(1/2))^x = 3^2` 

Equate exponents:

`x/2 = 2` 

⇒ x = 4 

This follows the same conversion method shown in the provided examples.

`log_(sqrt(3)) 9 = 4`

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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. (v) | Page 140
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