Last updated on July 15th, 2025
To simplify complex calculations, we convert the logarithmic expression into exponential form. For example, log_aN = x can be written in exponential form as a^x = N. In this article, we will learn about the logarithmic to exponential form, its formulas, and solved examples.
Logarithmic expressions can be converted into exponential form using the log to exponential rule. It helps solve equations more easily. We use it to simplify the calculation of very large numbers, especially in scientific and engineering contexts. The log to exponential form is based on the principle that if logaN = x, then in exponential form it can be written as ax = N.
There are specific formulas related to both logarithms and exponents in the log to exponential form. Logarithms simplify multiplication and division by converting them into addition and subtraction. Exponential forms help efficiently handle expressions involving powers and different bases. We will learn the log and exponential formulas in the next sections.
When working with complex logarithmic expressions, we use the logarithmic properties. These properties simplify complex expressions involving multiplication, division, and exponents by converting them to simpler operations. The formulas for logs are:
The exponential formula is used to express repeated multiplication of the same number in a simplified formula. We convert the exponential forms to logarithmic forms to simplify the calculations. The formulas for exponentials are:
By learning how to convert log to exponential form, we can solve problems related to population growth, earthquake intensity, sound levels, and many more. Here are some applications of log to exponential form.
When converting log to exponential form, it is important to memorize the formulas. Many students find this conversion difficult and make mistakes. Here are some common mistakes and the ways to avoid them.
Convert log_2 8 = 3 to exponential form
23 = 8
The log form of loga N = x, in exponential form, it is equal to ax = N
In log2 (8) = 3, a = 2 and x = 3
So, ax = N ⇒ 23 = 8
Find the value of log 32, given that log_10 2 = 0.301
The value of log 32 is 1.505
Given, log 2 = 0.301
32 can be written as 25
So, log 32 = log (2)5
= 5 log 2
= 5 × 0.301
= 1.505
Convert log_2 32 = 5 to exponential form
25 = 32
To convert the log form to exponential form, we use:
loga x = y ⇒ ay = x
Here, a = 2 and y = 5
25 = 32
Convert log_6 36 = 2 to exponential form
62 = 36
We use loga x = y ⇒ ay = x to convert a log to exponential form
Here, a = 6 and y = 2
So, in exponential form it is written as: 62 = 36
Find the value of log 200, given that log 2 = 0.301 and log 5 = 0.699.
The value of log 200 is 2.301
Given,
log 2 = 0.301
log 5 = 0.699
200 can be expressed as 23 × 52
So, log 200 = log(23 × 52)
= 3 log 2 + 2 log 5
= 3 × 0.301 + 2 × 0.699
= 0.903 + 1.398
= 2.301
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