Logarithm power rule calculator
Step by step worksheet, laws of logarithm

Solves \[\frac{a}{b}\log C=D\]

logarithms power rules

Logarithm Power rule calculator

Logarithms , power rule calculator solves logarithms problem in the following form
Solve logarithm
logarithms power rule

Step 1

Enter 1, 4 into the box marked "a" and "b" respectively

step 2

Enter 25 and 100 into the box marked "c" and "d" respectively

result

Hit the check mark to solve for logarithms.

About Logarithms, Power Rules

Logarithms are mathematical functions that represent the inverse of exponential functions. They are used to solve equations involving exponential growth or decay, and to simplify complex calculations.

The power rule of logarithms states that for any positive numbers b, k, and x, and any positive base other than 1, the following properties hold:

Logarithm of a power: log base b (x^k) = k * log base b (x)

 

Logarithm Base, Power, Exponent and Index Rule

The relationship between power, index, and base can be illustrated through the concept of exponentiation and root operations.

Exponent or power

Exponentiation is a mathematical operation that involves raising a base to a certain power. The power represents the exponent to which the base is raised.

For example, in the expression 2^3, the base is 2 and the power is 3.

This means that 2 is multiplied by itself three times: 2 * 2* 2 = 8.

Index

Root operations, on the other hand, involve finding the number that, when raised to a certain power (index), equals a given value.

For example, the square root is a type of root operation with an index of 2. It finds the number that, when squared, equals a given value.

In the expression √9, the index is 2 and the value is 9.

The square root of 9 is 3 because 3^2 = 9.

Relationship Between Power, Index and Base

To illustrate the relationship between power, index, and base, consider the expression

power-index

In this expression, we raise 2 to the power of 3 and then take the cube root of the result.

First, we calculate 2^3:

2^3 = 2 *2 * 2 = 8.

Next, we take the cube root of 8:

∛8 = 2.

Therefore, (2^3)^(1/3) = 2, showing the relationship between power, index, and base.

Example 1, Logarithms Power Rule

Simplify log base 2 (8) using the power rule.

Solution:

log base 2 (8) = log base 2 (2^3)

Applying the power rule, we have:

log base 2 (8) = 3 * log base 2 (2)

Since log base 2 (2) equals 1, the equation simplifies to:

log base 2 (8) = 3

Example 2, Logarithm Power Rule

Simplify log base 5 (125)

Solution:

log base 5 (125) = log base 5 (5^3)

Applying the power rule, we have:

log base 5 (125) = 3 * log base 5 (5)

Since log base 5 (5) equals 1, the equation simplifies to:

log base 5 (125) = 3

Example 3

Simplify log base 3 (27^2) using the power rule.

Solution:

log base 3 (27^2) = 2 * log base 3 (27)

Since 27 is equal to 3^3, the equation becomes:

log base 3 (27^2) = 2 * log base 3 (3^3)

Using the power rule again, we have:

log base 3 (27^2) = 2 * 3

Simplifying further, we get:

log base 3 (27^2) = 6

Example 4

Simplify log base 4 (16/2) using the power rule.

Solution:

log base 4 (16/2)

= log base 4 (16) - log base 4 (2)

Applying the power rule, we have:

log base 4 (16/2) = log base 4 (4^2) - log base 4 (2)

Since 4 is equal to 2^2, the equation simplifies to:

log base 4 (16/2) = log base 4 (2^2^2) - log base 4 (2)

Using the power rule again, we have:

log base 4 (16/2) = 2 * log base 4 (2) - log base 4 (2)

Since log base 4 (2) equals 1, the equation simplifies to:

log base 4 (16/2) = 2 - 1

Simplifying further, we get:

log base 4 (16/2) = 1

More math solvers

Pages

MathCrave EduFoundation

Mathcrave is an online math solver offering a wide range of free math worksheets on calculus, algebra, physics and more for free,

Follow MathCrave

©2023 MathCrave- All rights reserved
Login to Proceed with 15K Free Token/Day
Having API error or can't use the MathCrave AI?
Already signed up and not claimed 15k token/day?
Sign in now to claimed your token

Pretify Your Math Expression

Enter math expression in the box below