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

What is the inverse of f(x) = x^3 + 2x?

  • tomcenjerrym
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2
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7

Finite-Compliment Topology and intersection of interior

  • math707
  • · Replies 2 ·
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2

Question on surface integral of curl

  • Simfish
  • · Replies 2 ·
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2

Find the Limit of f(x)=cscx as x Approaches x-

  • uofamath114
  • · Replies 18 ·
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18

Finding Limits with a Constant: Tips for Calculus Students

  • EvilBunny
  • · Replies 4 ·
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4

Graphing x(t): Simple Stretch & Translation

  • Karma
  • · Replies 7 ·
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7
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10

Derivative and Tangent Line Equation

  • physstudent1
  • · Replies 15 ·
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15

Showing two families of curves are orthogonal.

  • EricVT
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3
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3
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4

Solving Statistic Problem: Low Tire Pressure & Tread Depth

  • inchuljang
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2

Differentiating t/(1+t^2)^(1/2)

  • P.O.L.A.R
  • · Replies 3 ·
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3

Continuity of Dirichlet looking function

  • teleport
  • · Replies 7 ·
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7

- how do I evaluate this integral?

  • frasifrasi
  • · Replies 3 ·
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3

Prove that f(n) = n * log (n) is O(n(1+sqrt(n))).

  • Logik
  • · Replies 7 ·
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7

Evaluating Integral of a Trigonometric Function: Homework Solution

  • ACLerok
  • · Replies 1 ·
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1

Understanding the Epsilon-Delta Definition of Limit in Calculus

  • indra00
  • · Replies 2 ·
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2

Prove that the closure is the following set.

  • rumjum
  • · Replies 2 ·
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2

Is the Mean Value Theorem Applicable to Prove sin x < x for x > 0?

  • dontdisturbmycircles
  • · Replies 1 ·
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1

Proof Vector Space of Shift Maps is Isomorphic to R2

  • FunkyDwarf
  • · Replies 1 ·
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1

Equations of Tangent Lines to y=4x^{3}+5x-8 Passing Through (1,-3)

  • ThomasHW
  • · Replies 4 ·
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4
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12

Evaluating arcsin (cos (7pi/5))

  • Karma
  • · Replies 2 ·
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2

Subset Relationships between Sets of Functions: U, A, B, C, D, E, F

  • Steverino777
  • · Replies 4 ·
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4

Proving the Cauchy Integral Theorem for Complex Analysis

  • brad sue
  • · Replies 3 ·
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3
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4

Really easy question about perpendicular lines in 3D?

  • doppelganger007
  • · Replies 12 ·
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12

Solve Vector Equation Problem: A, B, C & AxB + AxC

  • jean014
  • · Replies 5 ·
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5

Solve Integral: Tell if Hemisphere or Cone

  • yaho8888
  • · Replies 6 ·
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6

How Do You Solve Complex Number Equations with Trigonometric Forms?

  • VADER25
  • · Replies 2 ·
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2

How do I integrate u^-1 with new limits after substitution?

  • markyp23
  • · Replies 6 ·
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6

Where does the x/3 come from in trigonometric substitution?

  • tony873004
  • · Replies 3 ·
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3

How to Prove Compactness of Infinite Union of Line Segments in R^2?

  • kingwinner
  • · Replies 5 ·
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5

Proving Open-n-Cells in R^n are Open: Using Induction Method

  • rumjum
  • · Replies 6 ·
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6

Prove that quaternions are associative

  • proton
  • · Replies 5 ·
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5

Interval Notation: (A U B) - C = (4,9)

  • Steverino777
  • · Replies 1 ·
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1

Linear algebra - find all solutions with complex numbers

  • braindead101
  • · Replies 3 ·
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3

Differential Equations problem

  • squanto_sparta
  • · Replies 1 ·
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1

Every open set contains both open and closed cell.

  • rumjum
  • · Replies 3 ·
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3
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1

Equilibria analysis for Biomath Problem

  • end3r7
  • · Replies 8 ·
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8

Limit Problem Difference of Squares

  • Destrio
  • · Replies 8 ·
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8

Proving lim 10^n/n!=0 Using Limit Theorems

  • Gott_ist_tot
  • · Replies 2 ·
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2

Linear algebra - solve linear system with complex constants

  • braindead101
  • · Replies 2 ·
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2

Parametric Representation of a Plane

  • Alw
  • · Replies 6 ·
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6

Solving for y' Derivative: 2 sinxcosy=1

  • BuBbLeS01
  • · Replies 17 ·
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17

Is Cos(pi(2x+1)) the Key to Simplifying the Search for x Values?

  • Karma
  • · Replies 5 ·
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5

Simple Trig Limit: Evaluate lim x->0 of (1-cos4x)/9x^2

  • L4N0
  • · Replies 5 ·
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5

More on finding the nth derivative

  • christen1289
  • · Replies 4 ·
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4

How Do You Calculate Derivatives for Trigonometric and Exponential Functions?

  • BuBbLeS01
  • · Replies 27 ·
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27

Formula for nth Derivative of f(x)= 1/(1-x)^2?

  • christen1289
  • · Replies 5 ·
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5

Solving Probability of Husband & Wife on Committee of 4

  • bethanyd
  • · Replies 5 ·
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5

Solving Integration Problem: x^3*sqrt(x^2 +1)

  • Molecular
  • · Replies 3 ·
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3
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3

Proving U(8) is not Isomorphic to U(10): Insights and Techniques

  • k3N70n
  • · Replies 2 ·
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2

What is the Total Energy of a Spring-Mass System in Vertical Oscillations?

  • stryker123
  • · Replies 2 ·
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2

Solving 2 + cos2x = 3cosx: 0<x<2pi

  • Karma
  • · Replies 1 ·
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1

Convergence of Fourier Series for f(t) = 1 + t with Only Cosine Terms in [0,pi]

  • malawi_glenn
  • · Replies 1 ·
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1

Solving a System of Equations in Linear Algebra

  • kasse
  • · Replies 1 ·
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1

Random Walk Question: Expected Value, Variance & Lim n→∞

  • erica1451
  • · Replies 1 ·
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1

Fourier series, complex coefficents

  • malawi_glenn
  • · Replies 1 ·
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1

Derivative of ln3: Simple Problem Solution

  • BuBbLeS01
  • · Replies 4 ·
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4
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3

Solve for Int: cos(x)=cos(17π/5)

  • Karma
  • · Replies 3 ·
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3

Limits & Continuity (Multivariable)

  • kingwinner
  • · Replies 15 ·
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15

Troubleshooting Initial Value Problems for Differential Equations

  • robbondo
  • · Replies 4 ·
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4
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2

Solving Integral of x|x| from -1 to 1

  • olds442
  • · Replies 2 ·
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2

Convergence of a Series in the z-Plane

  • neelakash
  • · Replies 8 ·
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8

Integration Volume: Disc vs Shell - What's the Difference?

  • pavadrin
  • · Replies 4 ·
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4

Proving an inequality - |sin n|>c

  • khari
  • · Replies 28 ·
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28

How Do You Calculate Combinations for Ice Cream Flavors with Constraints?

  • roadrunner
  • · Replies 6 ·
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6

Sequence, continuity, connectedness

  • kingwinner
  • · Replies 5 ·
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5

Functions with multiple variables

  • Niles
  • · Replies 2 ·
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2

Finding the derivative of a function. Am I doing this right?

  • lLovePhysics
  • · Replies 12 ·
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12

All eigenvalues zero => zero map

  • noospace
  • · Replies 10 ·
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10

Small Rotation about q: How \epsilon \vec{n} \times \vec{q} Works

  • ehrenfest
  • · Replies 3 ·
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3

Deriving an Infinite Series: P_e = 5/3

  • wildman
  • · Replies 5 ·
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5

Solving the Integral of s*(4-s)^\frac{1}{2}

  • yaho8888
  • · Replies 3 ·
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3

Integration by Parts: Solving \int64x^2cos(4x)dx

  • chrono210
  • · Replies 2 ·
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2

How does the int get from that step to this step?

  • frasifrasi
  • · Replies 5 ·
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5

Maximizing Probability of Drawing a Yellow Ball from Two Urns

  • akoska
  • · Replies 3 ·
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3

What is the Derivative of (1+tanx)?

  • fitz_calc
  • · Replies 4 ·
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4

How Do I Solve These Tricky Integrals Using Integration by Parts?

  • VADER25
  • · Replies 9 ·
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9

How Do You Solve the Limit of (x^3-2x)/(x-2) as x Approaches 2?

  • skateza
  • · Replies 4 ·
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4

Series/binomial/multinomial theorum

  • roadrunner
  • · Replies 4 ·
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4

AP Calculus Help: Solving y^2=2+xy

  • gonzalo12345
  • · Replies 4 ·
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4
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2

Substitution and integration by parts

  • cscott
  • · Replies 10 ·
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10

Double integral of volume bounded by plane and paraboloid

  • braindead101
  • · Replies 5 ·
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5

An integral and function inequality proof

  • brh2113
  • · Replies 4 ·
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4

Prove Intergal Question Without Calculating Integral

  • daniel_i_l
  • · Replies 2 ·
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2

Two complex analysis questions

  • strangequark
  • · Replies 4 ·
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4

Solving Dieterici's Equation: Critical Pressure for a,b & R

  • John O' Meara
  • · Replies 4 ·
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4

Wronskian Properties and Variation of Parameters

  • kasse
  • · Replies 7 ·
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7

Double integral of mass of circular cone

  • braindead101
  • · Replies 6 ·
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6

Non-homogeneous differential equation

  • kasse
  • · Replies 2 ·
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2

Multiple integrals - volume of part of a unit sphere

  • braindead101
  • · Replies 13 ·
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13