Proving a Statement about a Regular Curve: R of Area k

In summary, the conversation discusses the use of Green's theorem to prove that if C is a simple regular curve enclosing a region R of area k, then the integral of [a1x + a2y + a3, b1x + b2y + b3] over C is equal to (b1 - a2)k. The conversation also includes a link for the topic being discussed.
  • #1
Fernando Revilla
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MHB
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I quote a question from Yahoo! Answers

If C is a simple regular curve that encloses a region R of area k. Prove that if ai, bi are constants
∫(c) [a1x + a2y + a3, b1x + b2y + b3]dα = (b1 - a2)k. thanks

I have given a link to the topic there so the OP can see my response.
 
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  • #2
Using the Green's theorem: $$\int_C(a_1x+a_2y+a_3,b_1x+b_2y+b_3)d\alpha=\iint_R\left(\frac{\partial Q}{\partial x}-\frac{\partial P}{\partial y}\right)dxdy\\=\iint_R(b_1-a_2)dxdy=(b_1-a_2)\iint_Rdxdy=(b_1-a_2)k$$
 

1. What is a regular curve?

A regular curve is a continuous curve with no sharp turns or discontinuities. It is also known as a smooth curve.

2. How do you prove a statement about a regular curve?

To prove a statement about a regular curve, you need to use mathematical techniques and principles such as calculus, geometry, and algebra. You may also need to use specific theorems and formulas related to regular curves.

3. What does "R" represent in the statement "R of Area k"?

In this context, "R" represents the regular curve in question, while "Area k" represents the area enclosed by the regular curve.

4. Can any statement be proven about a regular curve?

Not necessarily. The statement must be mathematically sound and logically valid in order to be proven. Additionally, it must be possible to apply the appropriate mathematical techniques to the regular curve in question in order to prove the statement.

5. Are there any real-life applications for proving statements about regular curves?

Yes, there are many real-life applications for proving statements about regular curves. For example, these principles are used in physics, engineering, and architecture to analyze and design structures such as bridges, roller coasters, and buildings. They are also used in computer graphics and animation to create smooth and realistic curves.

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