Need help solving a Logarithmic Inequality?

In summary, the conversation discussed a question involving logarithmic inequalities and absolute values. The original poster got stuck and asked for help, but was reminded of the forum rules that require effort before assistance is given. Later, the poster thanked someone for providing a solution and asked for a link to learn about the forum rules and regulations.
  • #1
Saitama
4,243
93
Got a load of Logarithmic Inequalities questions. Solved almost all of them but got stuck in a question. here's the question:-

log3 |3-4x| > 2

Please help.
 
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  • #2
Where are you getting hung at?
 
  • #3
One thing that might help is to get rid of the absolute values.
|a - b| = a - b, if a > b, and
|a - b| = -(a - b) = b - a, if a < b
 
  • #4
i stucked because i forgot how to solve questions having a mod function. :(
If someone could solve this one, i may get a idea because there are many questions with me having a modulus function with them and this is a simple one (I guess so).

please someone solve this out...
 
  • #5
No, we won't solve your problems for you. See the rules.
This part is under Homework Help.
On helping with questions: Any and all assistance given to homework assignments or textbook style exercises should be given only after the questioner has shown some effort in solving the problem. If no attempt is made then the questioner should be asked to provide one before any assistance is given. Under no circumstances should complete solutions be provided to a questioner, whether or not an attempt has been made.
 
  • #6
Thanks Mark44 for your solution.
it worked for me.
And also thamks for notifying me, can you please provide me with a link where i can learn about the rules and regulations of board?
 
  • #8
Pranav-Arora said:
Thanks Mark44 for your solution.
it worked for me.
And also thamks for notifying me, can you please provide me with a link where i can learn about the rules and regulations of board?
I provided a link in post #5.
 

FAQ: Need help solving a Logarithmic Inequality?

What are logarithmic inequalities?

Logarithmic inequalities are mathematical expressions that involve logarithms and inequality symbols such as <, >, ≤, and ≥. They are used to compare two logarithmic expressions and determine which one is bigger or smaller.

How do you solve logarithmic inequalities?

To solve logarithmic inequalities, you need to isolate the logarithmic expression on one side of the inequality sign and the numerical expression on the other side. Then, you can use the properties of logarithms to rewrite the logarithmic expression in terms of the numerical expression. Finally, you can compare the numerical expressions to find the range of values that satisfy the inequality.

What are the common properties of logarithms used to solve logarithmic inequalities?

The common properties of logarithms used to solve logarithmic inequalities include the product rule, quotient rule, power rule, and change of base rule. These properties allow you to manipulate the logarithmic expressions and rewrite them in a simpler form.

What is the domain of a logarithmic inequality?

The domain of a logarithmic inequality is the set of all real numbers that make the inequality true. This is because logarithmic functions are only defined for positive values, so the values that make the logarithmic expression positive must be included in the domain.

How are logarithmic inequalities used in real life?

Logarithmic inequalities are used in various fields of science, such as biology, chemistry, and physics. They are also used in finance and economics to model growth rates and compound interest. In engineering, they are used to analyze complex systems and make predictions. In everyday life, logarithmic inequalities can be used to compare the sizes of quantities or determine the rate of change in a given situation.

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