Limit of Taylor Polynomial for Tn(x) as n Approaches Infinity

In summary, the problem is asking to find the limit of Tn(x) as n approaches infinity, where Tn(x) is a polynomial series. The solution involves first writing the series and then using mathematical techniques to find the limit. The person asking the question was unsure of the best approach, but ultimately was able to solve it with some effort.
  • #1
Kqwert
160
3
Member warned that some effort must be shown.

Homework Statement


Let Tn(x)=1+2x+3x^2+...+nx^(n-1)

Find the value of the limit lim n->infinity Tn(1/8).

The Attempt at a Solution


How do I solve this? I know how to write the polynomial as a series, but not sure how if this is the best way of finding the limit.
 
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  • #2
Kqwert said:

Homework Statement


Let Tn(x)=1+2x+3x^2+...+nx^(n-1)

Find the value of the limit lim n->infinity Tn(1/8).

The Attempt at a Solution


How do I solve this? I know how to write the polynomial as a series, but not sure how if this is the best way of finding the limit.

You need to make your best effort and show us how far you can get.
 
  • #3
I solved it now - thanks.
 

What is the limit of a Taylor polynomial?

The limit of a Taylor polynomial is the value that the polynomial approaches as the degree (or number of terms) approaches infinity. This value is often referred to as the Taylor series or Taylor approximation.

How is the limit of a Taylor polynomial calculated?

The limit of a Taylor polynomial can be calculated using the formula for a Taylor series, which involves taking the derivative of the function at a specific point and evaluating it at that point. As the degree of the polynomial increases, the accuracy of the approximation also increases.

Why is the limit of a Taylor polynomial important?

The limit of a Taylor polynomial is important because it allows us to approximate complex functions with simpler polynomials. This can be useful in many areas of mathematics and science, such as in optimization problems or in finding solutions to differential equations.

What are the limitations of using a Taylor polynomial?

One limitation of using a Taylor polynomial is that it only provides an approximation of the function near a specific point. This means that it may not accurately represent the behavior of the function outside of this region. Additionally, the accuracy of the approximation depends on the degree of the polynomial used, so higher degrees are needed for more complex functions.

Can a Taylor polynomial be used to find the exact value of a function?

No, a Taylor polynomial can only provide an approximation of a function. It cannot give the exact value of a function, but as the degree of the polynomial increases, the accuracy of the approximation also increases. In some cases, an infinite degree Taylor polynomial can provide an exact representation of a function, but this is not always possible.

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