An Implication of a limit rule

In summary, the question is asking if the limit of the natural log of a function can be equal to the natural log of the limit of that function.
  • #1
Rayquesto
318
0

Homework Statement



If lim (x->∞) [ln(x^(1/x))]=0 and lim (x->∞) x^(1/x)=1, then does this

=>

lim (x->∞) [ln(x^(1/x))]= ln(lim(x->∞) [(x^(1/x))]) = ln(1)??

Homework Equations



lim (x->∞) [ln(x^(1/x))]=0 and lim (x->∞) x^(1/x)=1

The Attempt at a Solution



lim (x->∞) [ln(x^(1/x))]= ln(lim(x->∞) [(x^(1/x))] = ln(1)
 
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  • #2
Rayquesto said:

Homework Statement



If lim (x->∞) [ln(x^(1/x))]=0 and lim (x->∞) x^(1/x)=1, then does this

=>

lim (x->∞) [ln(x^(1/x))]= ln(lim(x->∞) [(x^(1/x))]) = ln(1)??

Homework Equations



lim (x->∞) [ln(x^(1/x))]=0 and lim (x->∞) x^(1/x)=1

The Attempt at a Solution



lim (x->∞) [ln(x^(1/x))]= ln(lim(x->∞) [(x^(1/x))] = ln(1)
Just what is the question?

You do realize that ln(1) = 0, don't you ?
 
  • #3
Yes, but the question refers to the limit rules. This is what I am asking: lim (x->∞) [ln(x^(1/x))]= ln(lim(x->∞) [(x^(1/x))]) = ln(1)??

To put it into words: Can the limit as x approaches infinity of [ln(x^(1/x))] be equal to the natural log of the limit as x approaches infinity of [(x^(1/x))] since lim (x->∞) [ln(x^(1/x))]=0 and lim (x->∞) x^(1/x)=1?
 

Related to An Implication of a limit rule

What is a limit rule?

A limit rule is a mathematical principle that describes the behavior of a function as its input approaches a certain value. It helps us understand the behavior of a function near a specific point, and can be used to evaluate limits and determine continuity.

What is the implication of a limit rule?

The implication of a limit rule is that it allows us to make predictions about the behavior of a function without having to know the exact value at a specific point. This can be useful in many areas of mathematics and science, such as calculus, physics, and economics.

How do limit rules work?

Limit rules are based on the concept of a limit, which is the value that a function approaches as its input approaches a certain value. The rules themselves are derived from the properties of limits, such as the sum, difference, product, and quotient rules.

What are some common limit rules?

Some common limit rules include the sum rule, difference rule, product rule, quotient rule, and power rule. These rules can be used to evaluate limits of various types of functions, such as polynomials, rational functions, exponential functions, and trigonometric functions.

Why are limit rules important?

Limit rules are important because they allow us to make predictions and solve problems involving the behavior of functions without having to know the exact value at a specific point. They are also essential in many areas of mathematics and science, and provide a foundation for more advanced concepts such as derivatives and integrals.

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