Analyzing a Smooth Curve for -π < t < π

In summary, the question is asking to determine if the function R(t)=(4sin^3(t), 4cos^3(t)) is a smooth curve for the interval -pi<t<pi. The student is unsure of how to approach this problem and is seeking help. The concept of a smooth curve is explained and it is determined that the function is not continuous at a certain point, making the denominator go to zero. It is clarified that working with the complex plane is not necessary and the definition of "smooth curve" is discussed.
  • #1
Masgr404
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0

Homework Statement



Determine where r(t) is a smooth curve for -pi <t<pi
R(t)= (x(t),y(t))=(4sin^3(t), 4cos^3(t))

Homework Equations





The Attempt at a Solution



To be honest I have no idea where to start. I know what a smooth function is but my understanding is that the sin(t) and cos(t) functions over all of t are smooth. No corners.
Any starting help would be appreciated.
 
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  • #2
Yes, but you are NOT asked if sine and cosine are smooth- you are asked if F is smooth. What happens if the denominator of a fraction goes to 0? What fraction is involved here?
 
  • #3
The function is not continuous at that particular point that makes the denominator go to zero.
Perhaps we could rewrite in the complex plane?
 
  • #4
No, it is not necessary to work with the complex plane. What is the definition of "smooth curve"?
 
  • #5
As someone on mathstackexchange said, a smooth curve is a curve with no stubble, like this: :bugeye:
 

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FAQ: Analyzing a Smooth Curve for -π < t < π

What is the purpose of analyzing a smooth curve for -π < t < π?

The purpose of analyzing a smooth curve for -π < t < π is to understand the behavior and characteristics of the curve and its relationship to the variable t within the given range. This can help in making predictions, identifying patterns, and drawing conclusions about the data represented by the curve.

What tools or techniques are commonly used to analyze a smooth curve?

Some commonly used tools and techniques for analyzing a smooth curve include calculus, graphing software, and statistical methods. These can help in finding the slope, intercepts, and critical points of the curve, as well as analyzing its concavity, symmetry, and other properties.

How can one determine the function represented by a smooth curve for -π < t < π?

Determining the function represented by a smooth curve for -π < t < π can be done by using techniques such as curve fitting, interpolation, or regression analysis. These methods involve finding a mathematical equation that best fits the data points on the curve and can be used to make predictions or further analyze the curve.

What are some common types of smooth curves that are analyzed in scientific research?

Some common types of smooth curves that are analyzed in scientific research include sine and cosine curves, exponential curves, logarithmic curves, and polynomial curves. These curves can represent a wide range of phenomena, such as growth and decay, cyclical patterns, and relationships between variables.

How does analyzing a smooth curve for -π < t < π contribute to scientific knowledge?

Analyzing a smooth curve for -π < t < π can contribute to scientific knowledge by providing insights into the behavior and patterns of various phenomena. This can help in developing theories, making predictions, and validating experimental results. It also allows for a deeper understanding of the relationship between variables and can lead to new discoveries and advancements in scientific fields.

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