Calculus and Beyond Homework Help Forum

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Free calculus and beyond homework help via qualified mentors. Math courses from calculus on-wards homework. Please use the template when requesting help and show your work.
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Hey I posted in homework help but now it's gone
  • Mark44
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  • Sticky
Homework Help Guidelines for Students and Helpers
  • vela
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Investigating the real roots of a cubic equation
  • brotherbobby
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Hi! Can someone explain about Differential Equations?
  • Sandra Jane
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What does "compute Aut(G)" mean?
  • Hill
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Joint distribution of sequential variables
  • Gear300
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J_1(x) = (x^2/10)*(J_1(x) + J_3(x)) How to solve?
  • qnach
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Solve the given second order differential equation
  • chwala
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Problem involving ordinary differential equation
  • chwala
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Deriving spatial derivatives
  • slurms
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Finding the Centre of Mass of a Hemisphere
  • akrill
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Vector calculus: line element dr in cylindrical coordinates
  • chiyu
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Is this the correct general solution of the given PDE?
  • Math100
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Definite integral involving rational function and 𝜋
  • ahilan
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Polar integral
  • aronclark1017
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Distance between a Clock's hands when the distance is increasing most rapidly
  • WMDhamnekar
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Use greedy vertex coloring algorithm to prove the upper bound of χ
  • bremenfallturm
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Prove that l^p is a subset of l^q for all p,q from 1 to infinity
  • cbarker1
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Volume with spherical coordinates
  • aronclark1017
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Is this biased or unbiased Method of Moments Estimator?
  • songoku
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Does this series converge uniformly?
  • Lotto
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Necessary criterion for expressing f(a + b)
  • sultan
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Complex Numbers (Laurent Series)
  • jojosg
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Prove that the integral is equal to ##\pi^2/8##
  • Meden Agan
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Finding the nth roots of a complex number
  • Brian_D
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Solve this problem that involves induction
  • chwala
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Limit of piecewise function using epsilon delta
  • songoku
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Conflicting definitions of linear independence
  • Brian_D
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Prove that ##\lim\limits_{x \to \infty} f(x) = 0##
  • Meden Agan
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Independent components of three indexed systems ##T_{ijk}##
  • brotherbobby
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Solve the given differential equation
  • chwala
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Dot diagrams and Jordan canonical forms
  • psie
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Solve the first order linear differential equation
  • chwala
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Inverse Mellin transform of the Gamma function
  • Rfael
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Melin transform of the floor function [x]
  • Rfael
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Formulate this as a linear programming problem
  • chwala
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Is this integral correct? (expanding the Bessel function into power series )
  • Rfael
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New axis of rotation for composite of rotations in Euclidean space
  • psie
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Please help me understand where I went wrong in my conversion from Cartesian to polar coordinates
  • shp
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Obtaining the moment of inertia of a sphere and spherical shell
  • hmparticle9
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Proof that the images of parallel lines under an isometry are parallel
  • clone
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Calculating radius of gyration of plane figure about x-axis
  • Evari5te
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How do we write a sinusoidal solution to a 2nd order DE as a sum of exponentials raised to complex roots?
  • zenterix
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Clarification on finding argument of complex number
  • chwala
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Confusion about definition of a splitting field
  • issam el mariami
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Find the eigenvectors in the given problem
  • chwala
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Solving the wave equation with piecewise initial conditions
  • songoku
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The volume of a "spherical cap" using triple integrals
  • brotherbobby
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Finding the modulus and argument of ##\dfrac{a}{(b±ci)^n}##
  • chwala
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Area of loop in x-y plane
  • littlemathquark
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Find the argument of the complex numbers
  • chwala
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Solve a problem involving complex numbers
  • chwala
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Find the modulus of ##\dfrac{(2-3i)(3+4i)}{(6+4i)(16-8i)}##
  • chwala
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Chain Rule Confusion (Euler-Lagrange Equation)
  • laser1
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Order the given radical numbers
  • littlemathquark
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Is this infinite series convergent or divergent?
  • Lotto
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Mass Moment of Inertia - Thin - Cylinder
  • erobz
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Area of segment cut from a circle
  • brotherbobby
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Maclaurin Series When 0 is in the Denominator?
  • Ascendant0
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Find the result of definite integration
  • songoku
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Find 10 Terms of the Laurent Expansion of 1/z(1-z)^2 in |z|>1
  • bluepilotg-2_07
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İs 𝑆=0.[2𝑘][3𝑘][5𝑘][7𝑘].... rational?
  • littlemathquark
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Person i belongs to a clique iff ith diagonal entry of B^3 is positive
  • psie
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Area surface of revolution (rotating this astroid curve around the x-axis)
  • SomeBody
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What is the Copeland-Erdős Number and Why is it Considered Normal?
  • littlemathquark
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Maximum value of Coefficient of Fibonacci Polynomial
  • Bling Fizikst
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Trigonometric Polynomial vs Fourier Polynomial
  • laser1
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Finding the rate of change of x in the equation
  • tellmesomething
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Multivariable epsilon-delta proof
  • nafisanazlee
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I don't understand how the author calculated the pullback of the 1 form (differential geometry)
  • DiffMani
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Is there a typo in this theorem in Apostol or not?
  • zenterix
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Faulted demonstration of orthonormality in my textbook?
  • LeFH18
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How should I find the following period ## T ## of this solution?
  • Math100
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Integration over a set in n-dimensional space
  • sphere1
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Let ##\forall x,y\in\mathbb{Q}^+## and ##f(xf(y))=\dfrac{f(x)}y##
  • littlemathquark
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Find f s. t. ||f||=1 and f(x) < 1 with ||x||=1
  • docnet
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ODE of an electric circuit consisting of EMF source, inductor and capacitor
  • songoku
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For this Partial Derivative -- Why are different results obtained?
  • Silvia2023
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Newton’s law of cooling to find the temperature of dead body
  • songoku
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Solving a linear differential equation with constant coefficients
  • Magnetons
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Logistic Regression and utility function
  • tomasrrd
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Help with Vector Multiplication please
  • Martyn Arthur
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Surface Area of a Sphere in Spherical Coordinates
  • laser1
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Calculating the relative error of an interpolation polynomial
  • bremenfallturm
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How should I show that solutions can be expressed as a Fourier series?
  • Math100
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##\lim_{x \to0} \left(\dfrac{1}{\sin^2 x}-\dfrac{1}{x^2}\right)##
  • littlemathquark
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##p(\sqrt 3+\sqrt 2)=(\sqrt 3)-1## find minimal ##p(x)## polynomial
  • littlemathquark
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Find the characteristic of the field
  • Hill
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Show that x -> x^p is an automorphism in K
  • Hill
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How should I show that there exists only one solution?
  • Math100
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Trying To Use Squeeze Theorem To Prove Derivatives Are Equal
  • toslowtogofast2a
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Why is ##d/dx## Considered the Direction of Increasing x?
  • laser1
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Odd extension: Show that if [K(a) : K] is odd, then K(a) = K(a^2)
  • Hill
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Eisenstein's criterion proof
  • Hill
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Need to understand the equations in calculus
  • Shourya Tripathi
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Why Does an Extra Factor Appear in My Calculus Chain Rule Proof?
  • laser1
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How should I show that all solutions are periodic?
  • Math100
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Calculate the Fourier transform of the susceptibility of an Oscillator
  • Lambda96
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Double Integral of function in region bounded by two circles
  • songoku
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Interpret Riemann sum to determine integral
  • stunner5000pt
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Stokes' Theorem for a Circle in a Plane
  • flyusx
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An Integral simplification I don't understand
  • YouAreAwesome
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