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.
Linear algebra multiple choice questions
  • underacheiver
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Dimensional analysis of an equation
  • Safinaz
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How to calculate primitive functions on maximal intervals for periodic functions?
  • Lotto
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Chain Rule Confusion
  • laser1
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Volume between a region (above x-axis and below parabola) and a surface
  • songoku
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Lattice point problem from Stewart's Calculus
  • issacnewton
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Surface integrals of vector fields, normal - does scaling matter?
  • laser1
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How should I find ## x_{2}(t) ## for this nonlinear integro-differential equation?
  • Math100
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How should I show that the index of a limit cycle is ## 1 ##?
  • Math100
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Number of Subgroups of Index m
  • cyclic
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Number of factors of a polynomial in F_2
  • cyclic
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Max amplitude of superposition of 2 waves
  • rc2008
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10
Multivariable integration of a piecewise function
  • nomadreid
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3
Proof Using Mean Value Theorem
  • toslowtogofast2a
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Proving an Inequality: x+y>=2sqrt(xy)
  • toslowtogofast2a
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How should I show that this root is given approximately by this?
  • Math100
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2
Find the Reflection Line of a Matrix, and Analyze the Transformation
  • Ascendant0
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10
[Solved] Unwanted minus sign in this derivative of a circular curve
  • nomadreid
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2
##\lim_{n\to\infty}\left(n\left(1+\frac1n\right)^n-ne\right)=?##
  • littlemathquark
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5
How should I show that all solutions of this equation are bounded?
  • Math100
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4
Triple Integral To Find Volume Between Cylinder And Sphere
  • flyusx
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2
How do I solve the Laplace equation using Robbin's Boundary Conditions?
  • shreddinglicks
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Find interval and root of polynomial with absolute error less than 1/8
  • songoku
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Prove the given problem that involves limits
  • chwala
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4
How should I show the following by using the signum function?
  • Math100
  • · Replies 14 ·
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14
Uniform Continuity of functions
  • Bling Fizikst
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Solve the given problem that involves Test of Hypothesis
  • chwala
  • · Replies 7 ·
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7
Find The Impedance For Two Complex Impedances in Parallel
  • Ascendant0
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3
How to find a system of equations when the solution is given?
  • Lotto
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6
What is the Fourier transform of sin(x) with non-zero terms?
  • lys04
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Solve the given problem involving integration
  • chwala
  • · Replies 6 ·
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Solve the given first order PDE
  • chwala
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5
How should I use the averaging approximation to find this?
  • Math100
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3
Find all positive integers n such that 3x^2-y^2=2018^n has an integer solution
  • littlemathquark
  • · Replies 15 ·
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15
Prove Continuity From Precise Definition of Limit
  • toslowtogofast2a
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7
Can square roots be simplified without a calculator?
  • littlemathquark
  • · Replies 13 ·
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Associativity of product sigma algebras
  • psie
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Is the sequence (0,0,1,0,0,0,0,1,1,1,..) a valid subsequence?
  • littlemathquark
  • · Replies 18 ·
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Pointwise convergence for all real x
  • lys04
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Prove this inequality using induction
  • sdfsfasdfasf
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Derivative Problem: f’(1), f’(2), f’(3), and f’(5)
  • SyaharaAden
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Regarding Simulations and Sample Size
  • Agent Smith
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Discontinuous partial derivatives example
  • littlemathquark
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Prove that the limit as n->infinity of n^n/n! is infinity
  • sphere1
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Proving Irregularity of {(x, y, z) within R^3 : x^2 + y^2 - z^2 = 0}
  • labercrombie36
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14
How should I show that this system has no limit cycle?
  • Math100
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2
A number Theory Question: Solve 2^x=3^y+509 over positive integers
  • littlemathquark
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x^2+2y^2+z^2=xyz Diophantine Equation
  • littlemathquark
  • · Replies 14 ·
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How should I show that these systems have no periodic solutions?
  • Math100
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How do you find the missing maximum of g(x)?
  • lioric
  • · Replies 28 ·
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Telescopic Series (Trigonometry)
  • Heisenberg7
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Proving a statement about covered intervals
  • littlemathquark
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How can I effectively solve a system of congruences?
  • bremenfallturm
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Why does 10|n^2 imply that 10|n, and why does 9|n^2 not imply that 9|n
  • bremenfallturm
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Help Understanding A Paper - Brachistochrone With Friction
  • eddiezhang
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Use Wronskian method in solving the given second order differential equation
  • chwala
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How should I show that the transformation makes the system Hamiltonian?
  • Math100
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Taylor Series Expansion Confusion
  • laser1
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Finding large prime factors (number theory)
  • bremenfallturm
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Expression, modular arithmetic
  • bremenfallturm
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Does Bezout's theorem work both ways?
  • Heisenberg7
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Null space of dual map of T = annihilator of range T
  • zenterix
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Show inclusion map extends to an isometry
  • psie
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Partial differential equations, symmetries, invariants, conservations,
  • newold22
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Evaluate the limit of the given problem
  • chwala
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How should I find the equilibrium points and the general equation?
  • Math100
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Special Comparison Test For Infinite Series
  • Ascendant0
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Infinite Series (Geometric) Problem
  • Ascendant0
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Question about Variable Change used in Differentiation
  • hokhani
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Understanding Equlibrium Points in differential equations
  • Martyn Arthur
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Equality sign and equivalence relations
  • psie
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7
Understanding the solution to this subspace problem in linear algebra
  • MaxJ
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Finding limit using integration
  • songoku
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Getting the probability distribution of a random variable
  • rcktbr
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Conditional expectations related to count of event occurring kth time
  • psie
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Probability that all runners finish within (9.8s to 9.9s)
  • psie
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Two cards are drawn from a deck without replacement
  • PhDeezNutz
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Unit normed linear functional on a space of sequences
  • docnet
  • · Replies 13 ·
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Random number generation: probability of 2nd smallest >0.002
  • psie
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Two basic exercises on order statistics
  • psie
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Computing conditional extinction probabilities for pollen cells
  • psie
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Notion of an integral as a summation
  • sachin
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A game of roulette and generating functions
  • psie
  • · Replies 3 ·
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Can this function still be a constant function?
  • tellmesomething
  • · Replies 11 ·
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Find unconditional distribution using transforms
  • psie
  • · Replies 1 ·
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Vector parametric equation of line
  • songoku
  • · Replies 9 ·
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9
Finding Non-Trivial Solution(s) For 3x3 Matrix
  • Ascendant0
  • · Replies 9 ·
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Why is this valid? Continuity of Functions Problem
  • tellmesomething
  • · Replies 3 ·
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f(x) = 2x+1, proving that it is continuous when p = 1 with 𝛿 and ε
  • thethagent
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Limit Considerations w/o L'Hôpital on a Quotient of Root Expressions
  • tellmesomething
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Is the Max Function a Norm in R^3?
  • Lambda96
  • · Replies 6 ·
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Constructing cubic spline interpolation polynomials
  • bremenfallturm
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Geometrical definition of Curl -- proof
  • vgarg
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Exam asks me for a case where ▲x > dx?
  • luke00628063
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Determine the mean square error of a simple distribution
  • psie
  • · Replies 4 ·
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lim x-->0 ##\frac{x tan2x -2xtanx} {(1-cos2x)^2}##
  • tellmesomething
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Find the limit of the sum of the areas of all these triangles
  • tellmesomething
  • · Replies 7 ·
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Implicit function theorem part 2
  • Lambda96
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N-dimensional broken stick problem -- find joint density
  • psie
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Find the particular solution of the second order differential equation
  • chwala
  • · Replies 3 ·
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3