What is Cusp and what are the values of derivatives

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In summary, a Cusp is a point on a curve where two branches meet and share a limiting tangent. It is a type of singular point and is considered "local." The classic example of a cusp is the semicubical parabola, which has a cusp at the origin.
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What is Cusp and what are the values of derivatives on left and right side of it?
 
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A Cusp is a point at which two branches of a curve meet such that the branches share a limiting tangent.

A Cusp is a type of singular point on a curve (a point on a curve that does not have a defined derivative), and is considered "local" as it not a result of self intersections of the curve.

The classic example of a cusp is the semicubical parabola; [itex]x^3-y^2=0[/itex], which has a cusp at the origin. We see this as the two branches of the curve, [tex]y=x^{\frac{3}{2}}[/tex] and [tex]y=-x^{\frac{3}{2}}[/tex] both have the limiting tangent y=0.
 

FAQ: What is Cusp and what are the values of derivatives

What is a cusp in mathematics and where does it occur?

A cusp is a point on a curve where the curve changes direction abruptly and is not smooth. It can occur in a graph when the slope of the curve changes rapidly at a specific point.

How do you determine the value of a derivative at a cusp?

The value of a derivative at a cusp can be determined by taking the limit of the derivative as it approaches the point of the cusp. This can be calculated using the left-hand and right-hand limits of the derivative at the cusp point.

Can a function have a cusp at a specific point and still be continuous?

Yes, a function can have a cusp at a specific point and still be continuous. This occurs when the left-hand and right-hand limits of the function at the cusp point are equal.

What is the significance of a cusp in calculus?

A cusp is significant in calculus because it represents a point of non-differentiability. This means that the function is not smooth at the cusp point and the derivative does not exist at that point.

How do you graph a function with a cusp?

To graph a function with a cusp, you can plot the points around the cusp and connect them with a smooth curve. It is also helpful to determine the slope of the curve on either side of the cusp to accurately represent the steepness of the curve at that point.

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