The polar function gives the radius, why do we still need to use the convoluted curve formula to solve it? Shouldn't K=$\frac{1}{R}=\frac{1}{3+2\cos{0}}=\frac{1}{5}$? Why doesn't this work?
2026-04-04 00:19:40.1775261980
Since the formula for curvature is $\frac{1}{R}$, why can't we just find curvature of say: $r=3+2\cos{\theta}$, where $\theta=0$ by substituting?
40 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail At
1
There are 1 best solutions below
Related Questions in CALCULUS
- Equality of Mixed Partial Derivatives - Simple proof is Confusing
- How can I prove that $\int_0^{\frac{\pi}{2}}\frac{\ln(1+\cos(\alpha)\cos(x))}{\cos(x)}dx=\frac{1}{2}\left(\frac{\pi^2}{4}-\alpha^2\right)$?
- Proving the differentiability of the following function of two variables
- If $f ◦f$ is differentiable, then $f ◦f ◦f$ is differentiable
- Calculating the radius of convergence for $\sum _{n=1}^{\infty}\frac{\left(\sqrt{ n^2+n}-\sqrt{n^2+1}\right)^n}{n^2}z^n$
- Number of roots of the e
- What are the functions satisfying $f\left(2\sum_{i=0}^{\infty}\frac{a_i}{3^i}\right)=\sum_{i=0}^{\infty}\frac{a_i}{2^i}$
- Why the derivative of $T(\gamma(s))$ is $T$ if this composition is not a linear transformation?
- Proving that: $||x|^{s/2}-|y|^{s/2}|\le 2|x-y|^{s/2}$
- Calculation of distance of a point from a curve
Related Questions in MULTIVARIABLE-CALCULUS
- Equality of Mixed Partial Derivatives - Simple proof is Confusing
- $\iint_{S} F.\eta dA$ where $F = [3x^2 , y^2 , 0]$ and $S : r(u,v) = [u,v,2u+3v]$
- Proving the differentiability of the following function of two variables
- optimization with strict inequality of variables
- How to find the unit tangent vector of a curve in R^3
- Prove all tangent plane to the cone $x^2+y^2=z^2$ goes through the origin
- Holding intermediate variables constant in partial derivative chain rule
- Find the directional derivative in the point $p$ in the direction $\vec{pp'}$
- Check if $\phi$ is convex
- Define in which points function is continuous
Related Questions in POLAR-COORDINATES
- Second directional derivative of a scaler in polar coordinate
- polar coordinate subtitution
- Finding the centroid of a triangle in hyperspherical polar coordinates
- Arc length of polar function and x interceps
- Evaluation of $I=\iint_R e^{-(x^2+y^2)} \,dx\,dy$ by change of variable
- Finding area bound by polar graph
- Question about the roots of a complex polynomial
- Polar Area Integral with Absolute Function
- How to compute 'polar form' of a line given two points in cartesian coordinate system?
- Complex Numbers $- \arg(-z)$
Related Questions in CURVATURE
- Sign of a curve
- What kind of curvature does a cylinder have?
- A new type of curvature multivector for surfaces?
- A closed manifold of negative Ricci curvature has no conformal vector fields
- CAT(0) references request
- Why is $\kappa$ for a vertical line in 2-space not undefined?
- Discrete points curvature analysis
- Local computation of the curvature form of a line bundle
- Closed surface embedded in $\mathbb R^3$ with nonnegative Gaussian curvature at countable number of points
- What properties of a curve fail to hold when it is not regular?
Trending Questions
- Induction on the number of equations
- How to convince a math teacher of this simple and obvious fact?
- Find $E[XY|Y+Z=1 ]$
- Refuting the Anti-Cantor Cranks
- What are imaginary numbers?
- Determine the adjoint of $\tilde Q(x)$ for $\tilde Q(x)u:=(Qu)(x)$ where $Q:U→L^2(Ω,ℝ^d$ is a Hilbert-Schmidt operator and $U$ is a Hilbert space
- Why does this innovative method of subtraction from a third grader always work?
- How do we know that the number $1$ is not equal to the number $-1$?
- What are the Implications of having VΩ as a model for a theory?
- Defining a Galois Field based on primitive element versus polynomial?
- Can't find the relationship between two columns of numbers. Please Help
- Is computer science a branch of mathematics?
- Is there a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?
- Identification of a quadrilateral as a trapezoid, rectangle, or square
- Generator of inertia group in function field extension
Popular # Hahtags
second-order-logic
numerical-methods
puzzle
logic
probability
number-theory
winding-number
real-analysis
integration
calculus
complex-analysis
sequences-and-series
proof-writing
set-theory
functions
homotopy-theory
elementary-number-theory
ordinary-differential-equations
circles
derivatives
game-theory
definite-integrals
elementary-set-theory
limits
multivariable-calculus
geometry
algebraic-number-theory
proof-verification
partial-derivative
algebra-precalculus
Popular Questions
- What is the integral of 1/x?
- How many squares actually ARE in this picture? Is this a trick question with no right answer?
- Is a matrix multiplied with its transpose something special?
- What is the difference between independent and mutually exclusive events?
- Visually stunning math concepts which are easy to explain
- taylor series of $\ln(1+x)$?
- How to tell if a set of vectors spans a space?
- Calculus question taking derivative to find horizontal tangent line
- How to determine if a function is one-to-one?
- Determine if vectors are linearly independent
- What does it mean to have a determinant equal to zero?
- Is this Batman equation for real?
- How to find perpendicular vector to another vector?
- How to find mean and median from histogram
- How many sides does a circle have?
The radius of curvature at a point does not have anything to do with the distance from the origin.
For a start, the circle with the same radius of curvature as the function is not necessarily centered at the origin. Furthermore, there are infinitely many circles passing through the origin and $(r, \theta) = (5, 0)$: you need a third point to determine the unique circle with the right radius of curvature.