Calculus and Beyond Homework Help Forum

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.

Threads

Prove divergence of the Series

  • davidge
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5

Primitive of a definite integral

  • PeteSampras
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1

Confusion between z and t values

  • Rifscape
  • · Replies 5 ·
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5

Problem with Approximations Using Differentials

  • rhdinah
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4

Show Set Theory Subset Relationship: x, y $\in$ B

  • Mr Davis 97
  • · Replies 2 ·
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2

Reciprocal Function is Unbounded

  • Bashyboy
  • · Replies 1 ·
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1

Open/Closed continuous maps between the plane

  • PsychonautQQ
  • · Replies 1 ·
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1

Show Cardinality of Real Numbers and Complements

  • Mr Davis 97
  • · Replies 11 ·
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11

Is the Number of Elements in a Set Equal to Its Power Set?

  • Mr Davis 97
  • · Replies 3 ·
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3

Prove that roots of trig polynomials are denumerable

  • Mr Davis 97
  • · Replies 2 ·
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2

Probability of bulb malfunction

  • tzx9633
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1

Calculating Binomial Probability for Car Color Preferences

  • tzx9633
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2

Convergent Series Can Be Bounded by Any ##\epsilon>0##

  • Bashyboy
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2

Are Coin Toss Events A, B, and C Independent?

  • Rifscape
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1
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8

Reciprocal Theorem proof in 3 variables

  • RJLiberator
  • · Replies 10 ·
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10

Proving that the algebraic numbers are denumerable

  • Mr Davis 97
  • · Replies 3 ·
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3

Proving Injectivity of Shroeder-Berstein Theorem for R to R^2 x R^2

  • Mr Davis 97
  • · Replies 5 ·
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5
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2

Proving Cardinality of P(S) > S

  • Mr Davis 97
  • · Replies 2 ·
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2

Finding the approximate change in the perimeter of a circle

  • a129
  • · Replies 1 ·
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1

Proving Dyadic Squares Interaction Rules

  • Mr Davis 97
  • · Replies 1 ·
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1

Finding coefficients 6 and 5 in mass-spring differential equation

  • Aows
  • · Replies 9 ·
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9

Proving Properties of Lim Sup: Sequences and Limits

  • Bashyboy
  • · Replies 1 ·
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1

Limit as x approaches infinity.

  • SPhy
  • · Replies 2 ·
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2

Multiplying permutation cycles

  • fishturtle1
  • · Replies 3 ·
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3

Divergence of electrostatic field?

  • terryds
  • · Replies 3 ·
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3

Second derivative in parametric equations

  • Karol
  • · Replies 3 ·
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3

Finding the behavior of coth(x) as T approaches 0 and infinity

  • subzero0137
  • · Replies 1 ·
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1

Dyadic squares inside of a disc

  • Mr Davis 97
  • · Replies 18 ·
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18

Is (-infinity, b) an event for any real number b?

  • kolua
  • · Replies 4 ·
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4

##R[x,y]## and ##R[y,x]## are Ring Isomorphic

  • Bashyboy
  • · Replies 3 ·
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3

Extending a Continuous Function a Closed Set

  • Bashyboy
  • · Replies 5 ·
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5

Functions and Analysis with a fixed-point

  • Mr Davis 97
  • · Replies 2 ·
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2

Conversion of statements to math

  • Mr Davis 97
  • · Replies 3 ·
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3

Calculating amplitude envelopes of scanning lines through a rotated square

  • nordmoon
  • · Replies 2 ·
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2

Does a Smallest Real Number Exist for a Given Real Number?

  • Mr Davis 97
  • · Replies 1 ·
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1

Mathmatical modeling with Toricelli's law

  • Eclair_de_XII
  • · Replies 10 ·
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10

Force due to two thin charged rods acting on each other

  • Vriska
  • · Replies 7 ·
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7

Solutions to Equations Involving Exponential and Trig Functions

  • Bashyboy
  • · Replies 1 ·
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1

Outer Measure is Countably Subadditive

  • Bashyboy
  • · Replies 1 ·
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1
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10

Proving N and Z are closed sets using complements

  • Math Amateur
  • · Replies 6 ·
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6

Proving that the Harmonic Series is divergent

  • Seydlitz
  • · Replies 13 ·
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13

Differentiation with respect to a complex expression

  • Karol
  • · Replies 3 ·
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3

Countable compactness and nested closed sets

  • Bashyboy
  • · Replies 1 ·
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1
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2

Solving partial differential equation with Laplace

  • Aows
  • · Replies 6 ·
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6

Improper Integral of a Monotonic Function

  • Bashyboy
  • · Replies 6 ·
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6

Differentiate the following. How do i solve y''(x) = -y ?

  • CosmicC
  • · Replies 4 ·
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4

Mean squared value of the Gaussian

  • A Cheeky Llama
  • · Replies 7 ·
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7

Counting strings of alphabets 0,1,2 and 3

  • issacnewton
  • · Replies 4 ·
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4

Find y(x) and f(y) given y''(x)=f(y) and int(f(y)dy)=x-1

  • Bill_Nye_Fan
  • · Replies 3 ·
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3

Negative derivative instead of positive

  • Karol
  • · Replies 10 ·
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10

Arc length of inverse functions y = x² and y = √x

  • integral25
  • · Replies 5 ·
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5

Checking d'Alembert wave equation solution

  • CannonSLX
  • · Replies 11 ·
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11

What is the Definition of Period in Fourier Series?

  • CannonSLX
  • · Replies 2 ·
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2

Derivative as a Limit: Finding dy/dx for y = √(2x+3)

  • Karol
  • · Replies 7 ·
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7

Line passing through a point and normal to a curve

  • Karol
  • · Replies 4 ·
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4

Derivative of a parametric equation

  • Karol
  • · Replies 6 ·
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6

Volume of a sphere in cylindrical coordinates

  • Thomas Kieffer
  • · Replies 6 ·
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6

Proving lim(1/(1+na))=0 using epsilon-delta definition

  • Math Amateur
  • · Replies 3 ·
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3

Sohrab ex. 2.1.12 part (1): ordering on the real numbers

  • Math Amateur
  • · Replies 2 ·
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2

Does Changing Vector Components Affect Parallelepiped Volume?

  • Rotnort
  • · Replies 5 ·
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5

Derivative of Secant: Find dy/dx

  • Karol
  • · Replies 2 ·
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2

Coupled differential equations using matrices

  • Marcus95
  • · Replies 7 ·
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7

Solving Boundary Value ODE: y''+λy=0

  • WendysRules
  • · Replies 4 ·
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4

Statistics average value question

  • kidsasd987
  • · Replies 1 ·
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1

Open Sets - Unions and Intersections - Sohrab Ex. 2.2.4 (1)

  • Math Amateur
  • · Replies 11 ·
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11

Finding when a parametric equation self-intersects

  • Mr Davis 97
  • · Replies 3 ·
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3

Proof regarding determinant of block matrices

  • Adgorn
  • · Replies 5 ·
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5

Polar Partial Derivatives - Boas Ch 4 Sect 1 Prob 13

  • rhdinah
  • · Replies 6 ·
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6

Show that this function is differentiable

  • Oats
  • · Replies 2 ·
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2

Can I Rescale These Bottle Design Functions for Half the Volume?

  • BigKevSebas
  • · Replies 10 ·
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10

Proving conditions for a covering map to be a homeomorphism

  • PsychonautQQ
  • · Replies 12 ·
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12

Proof of this limit formula for e

  • Arnoldjavs3
  • · Replies 9 ·
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9

Water Bottle Design Using Polynomials

  • BigKevSebas
  • · Replies 12 ·
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12

How does the chain rule relate dy/dx to dy/dt and dx/dt?

  • Karol
  • · Replies 13 ·
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13

Fundamental Group Coset to preimage bijection

  • PsychonautQQ
  • · Replies 4 ·
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4

Calculating Derivatives of f(x,y) with Respect to x

  • CStudy
  • · Replies 1 ·
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1

How can I find the limit of the integral?

  • SunGirl
  • · Replies 3 ·
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3

Cauchy's inequality proof using discriminant of quadratic form

  • Math Amateur
  • · Replies 2 ·
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2

Why does the limit of -x^(k+1)/e^x as x approaches infinity equal zero?

  • ckyborg4
  • · Replies 5 ·
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5

An Error Formula for Linearization (involving second Derivative)

  • EEristavi
  • · Replies 2 ·
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2

One-dimensional integration - flux

  • drynada
  • · Replies 2 ·
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2
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2

Set of vectors whose coordinates are integer (is a subspace?)

  • negation
  • · Replies 9 ·
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9

Finding camera length in ImageJ from TEM diffraction image

  • Mikhail_MR
  • · Replies 1 ·
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1

Why eigenvalues use odd n in y'' + λy = 0 with y(0) = 0, y'(L) = 0

  • WendysRules
  • · Replies 1 ·
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1

Proving det(A) > 0 for A^3 = A + 1 over R using linear algebra

  • Mr Davis 97
  • · Replies 17 ·
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17

Laplace transform (translation on the s-axis)

  • PhysicsCollegeGirl
  • · Replies 2 ·
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2

Justification for upper bound in Taylor polynomial

  • woe_to_hice
  • · Replies 3 ·
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3

[itex]\lim_{n \to \infty} \sum_{1}^{n} 1/(n+i)=log(2)[/itex]

  • Onezimo Cardoso
  • · Replies 8 ·
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8
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4

Prove trace of matrix: Tr(AB) = Tr(BA)

  • DrMCoeus
  • · Replies 5 ·
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5

Linear Least-Squares Regression: a_0 = ?

  • s3a
  • · Replies 3 ·
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3

Proving existence of k such that (r + 1/k)² < s for rationals

  • Math Amateur
  • · Replies 45 ·
2
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45

Estimating Eigenvalues from linear ODE

  • member 428835
  • · Replies 2 ·
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2

Write 2nd order ODE as system of two 1st order ODEs

  • s3a
  • · Replies 2 ·
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2

How can you use the tabular method to integrate xcos(x^2)

  • lioric
  • · Replies 1 ·
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1