Finding the Integral of xdx on Arc C

In summary, the question is asking to evaluate the integral of x with respect to x, along the arc of y=x^2 from (0,0) to (1,1). The attempt at a solution involves using the parametric equation x=t and y=t^2, where -1≤t≤1, to simplify the integral. The final answer is 1/3.
  • #1
SelHype
10
0

Homework Statement


Let C be the arc of y=x2 from (0,0) to (1,1). Evaluate [tex]\int[/tex]xdx

Homework Equations


C1:
x=t
y=t2
-1 [tex]\leq[/tex] t [tex]\leq[/tex] 1 so -1 [tex]\leq[/tex] x [tex]\leq[/tex] 1

The Attempt at a Solution



dx is x' dt, right?

For some reason, I just can't figure this out. Any help?
 
Last edited:
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  • #2
ummm [tex]\int x dx[/tex] is not even a line integral; it's just an ordinary integral...do you mean [tex]\int_{\mathcal{P}} \vec{x} \cdot \vec{ds}[/tex]?
 
  • #3
No, that is what he has down...Except the C is where the p is on yours. I did not know how to do that. I figured it out, though.

since dx=xdt and x=t,

[tex]\int[/tex] from 0 to 1 of t2dt is 1/3.
 

What is the meaning of "Finding the Integral of xdx on Arc C"?

The process of finding the integral of xdx on Arc C involves calculating the area under the curve of the function xdx along a specific curve, C. This is also known as evaluating a line integral.

How is the integral of xdx on Arc C different from a regular integral?

The integral of xdx on Arc C is evaluated along a specific curve, while a regular integral is evaluated over a range of values. This means that the limits of integration for a line integral are given in terms of a curve, while the limits for a regular integral are given in terms of values.

What is the purpose of finding the integral of xdx on Arc C?

Finding the integral of xdx on Arc C is useful in many areas of science and engineering, particularly in the fields of physics and calculus. It allows us to calculate quantities such as work, fluid flow, and electric potential along a specific path or curve.

What are the steps to finding the integral of xdx on Arc C?

The steps to finding the integral of xdx on Arc C include parameterizing the curve C, setting up the integral with respect to the parameter, and then evaluating the integral using techniques such as substitution or integration by parts. It is important to also consider the orientation of the curve when setting up the integral.

Are there any special cases to consider when finding the integral of xdx on Arc C?

Yes, there are some special cases to consider when finding the integral of xdx on Arc C. These include cases where the curve C is closed, self-intersecting, or has multiple branches. In these cases, the integral may need to be split up into separate integrals or evaluated using different techniques.

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