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 h(y) where y=|x|

  • matrix_204
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3

Calculating Expected Frequency of Girls per Family in a Biased Society

  • mathlete
  • · Replies 6 ·
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6

How do I graph a sequence of partial sums on a TI-89/92/V200

  • opticaltempest
  • · Replies 1 ·
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1
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2

Calc 3 questions concerning Normal and Tangent unit Vectors

  • badtwistoffate
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5
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3

Solving y'' + 5y' = 400sin(5t)+250cos(5t) with Intial Conditions

  • mr_coffee
  • · Replies 6 ·
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6

Confused what method to use on this Diff EQ 2nd order

  • mr_coffee
  • · Replies 9 ·
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9

Evaluating \mathop {\lim }\limits_{n \to \infty } \left( {\frac{2}{3}} \right)^n

  • opticaltempest
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2

Why Does n! Grow Faster Than a^(2n+1) as n Approaches Infinity?

  • physicsRookie
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1

Help showing bound for magnitude of complex log fcn

  • benorin
  • · Replies 1 ·
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1

Stuck on equating co-efficents DiffEQ

  • mr_coffee
  • · Replies 4 ·
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4

A gravity calculusy kind of quesiton

  • RooftopDuvet
  • · Replies 5 ·
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5

Y''-6y'+5y = -25t^3, Diff EQ, did I mess up my guess again?

  • mr_coffee
  • · Replies 7 ·
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7

Solving Part (b) of Question Involving Surface Integrals

  • Benny
  • · Replies 4 ·
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4

Calculating Integrals with Tricky Substitutions

  • happyg1
  • · Replies 5 ·
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5
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3

Understanding the Maths Behind Space Elevators

  • RooftopDuvet
  • · Replies 1 ·
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1

Implicit Differentiation Problem

  • Vigo
  • · Replies 5 ·
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5

Aceleration/Velocity and Integration help

  • FLOUR
  • · Replies 2 ·
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2

What Went Wrong with Calculating the Area Under 3 Curves?

  • h6872
  • · Replies 2 ·
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2

Finding Intersection Points of 3 Curves in the First Quadrant

  • h6872
  • · Replies 2 ·
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2

Calculating the Volume of Revolution for e^x + 1 on x-axis

  • Hootenanny
  • · Replies 11 ·
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11

Can you spot the error in this integration by substitution problem?

  • Hootenanny
  • · Replies 7 ·
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7

Is H^n Homeomorphic to R^n?

  • Palindrom
  • · Replies 40 ·
2
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40

Determine the nature of the singularities

  • Wishbone
  • · Replies 2 ·
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2

How to integrate 13e^(-0.2x)sin(x)

  • killerinstinct
  • · Replies 5 ·
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5

Y''+9y = 6sin(3t); Diff EQ, weee where did i go wrong?

  • mr_coffee
  • · Replies 4 ·
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4

A matrix question(simple one i suppose)

  • georgeh
  • · Replies 3 ·
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3

(Complex Variables) Differentiability of Arg z

  • irony of truth
  • · Replies 1 ·
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1

Inverse of y = \frac{1-e^-x}{e^x+1}: Solve Here!

  • zombeast
  • · Replies 14 ·
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14

Help solving non homogenous second order ODEs

  • seang
  • · Replies 2 ·
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2

Proof of n^m - n Divisible by m for Positive Integers

  • JasonJo
  • · Replies 1 ·
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1

Proving the Reciprocal Relationship of Lim Sup and Lim Inf for Bounded Sequences

  • Treadstone 71
  • · Replies 2 ·
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2

Convergence of Series with Decreasing Terms: Can na_n Tend to Zero?

  • Treadstone 71
  • · Replies 20 ·
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20

Easy Guide: Solving Integral (sin x)/x dx from 0 to pi | Tips & Tricks

  • lueffy
  • · Replies 6 ·
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6

Error in taking the derivative of an integral

  • jesuslovesu
  • · Replies 5 ·
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5

Find Subgroup of Order 4 in $\mathbb{Z}$ /13

  • ElDavidas
  • · Replies 3 ·
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3

[Discrete Math] f: A->B; surjective? find necessary & sufficient condition.

  • Servo888
  • · Replies 15 ·
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15

Combinatorics homework question

  • buzzmath
  • · Replies 7 ·
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7

When isnt a matrix diagonalizable?

  • stunner5000pt
  • · Replies 1 ·
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1

Separable Differential Equation

  • mlowery
  • · Replies 4 ·
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4

Solving A X B Closed in \mathbb R^2

  • happyg1
  • · Replies 24 ·
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24

Proof using the Axioms of Addition and Multiplication

  • rad0786
  • · Replies 13 ·
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13
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3

Proving Nilpotency and Nonnegativity of Eigenvalues of Symmetric Matrices

  • stunner5000pt
  • · Replies 7 ·
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7

Finding Electron Probability: Wave Function x-Axis Analysis

  • UrbanXrisis
  • · Replies 2 ·
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2

Understanding Derivatives: Finding the Derivative of y=2x^2-5

  • chrisdapos
  • · Replies 7 ·
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7

Infinite set ordering convention

  • 0rthodontist
  • · Replies 2 ·
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2

Basic Derivative: dy/dx of \frac{x^2-2x}{\sqrt{x}}

  • cscott
  • · Replies 13 ·
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13

Getting Started With A Blood Vessel Problem

  • Tom McCurdy
  • · Replies 4 ·
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4

Urgend Geometric series question

  • Mathman23
  • · Replies 40 ·
2
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40

Second order differential equation

  • mr bob
  • · Replies 1 ·
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1

Determining Pivot Columns in a Matrix - Fred's Question

  • mathboy20
  • · Replies 3 ·
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3

Simpson's Rule question, which I hate

  • Hootenanny
  • · Replies 2 ·
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2

Finding the Remainder of 111111222222 Divided by 7

  • buzzmath
  • · Replies 4 ·
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4

Differentiation of Trig Functions

  • Hootenanny
  • · Replies 4 ·
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4

Linear Independance: Show {v1,v2,...,vn} is Basis of V

  • stunner5000pt
  • · Replies 2 ·
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2

Some contradiction I can't explain about e^(ix)

  • Ahmes
  • · Replies 1 ·
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1

Is 5 a divisor of 3^444 & 4^333?

  • Natasha1
  • · Replies 5 ·
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5

Can Spanning Subsets X and Y in Vector Space V Share No Common Vector?

  • stunner5000pt
  • · Replies 2 ·
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2

Defining Gradient for f(x)= ||x-a||

  • Black Orpheus
  • · Replies 4 ·
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4

Multivariable Optimization Problem

  • Black Orpheus
  • · Replies 3 ·
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3

Finding a Basis of V with Vector v

  • stunner5000pt
  • · Replies 1 ·
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1

Proving the Midpoint Theorem for a Plane Quadrilateral | Helpful Tips

  • Superdreamer
  • · Replies 1 ·
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1

[Discrete Math] Relations, (R subset S) / (R Intersects S)

  • Servo888
  • · Replies 4 ·
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4

Equilibrium of Forces Acting on Point Mass: Cross Product with a

  • jamesbob
  • · Replies 12 ·
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12

Is the axiom for addition in the set of polynomials of degree >=3 true?

  • stunner5000pt
  • · Replies 3 ·
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3

What is the trick to solving the integral of 1/(1+sin(x))?

  • Aresius
  • · Replies 4 ·
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4

Calc 3 Project: Solve Arc Length Problem with y = 1/c cosh(cx + b) + a

  • SigurRos
  • · Replies 5 ·
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5

Rally easy question (but I still )

  • mmh37
  • · Replies 7 ·
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7

Finding Extrema with Lagrange Multipliers

  • ElDavidas
  • · Replies 7 ·
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7

Trig step in a chain rule question

  • ElDavidas
  • · Replies 1 ·
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1

How can different types of logarithms affect the derivative of a function?

  • nofunatall
  • · Replies 10 ·
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10

Solving Advanced Limits: 3x^2/(1-cosx) & sin(cosx)/cosx

  • kaitamasaki
  • · Replies 2 ·
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2

How Do Field Lines Relate to Differential Equations in Vector Calculus?

  • mewmew
  • · Replies 1 ·
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1

Can i apply the same technique as I did with real solutions? D.E. 2nd order

  • mr_coffee
  • · Replies 3 ·
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3

Determining the limit of a sequence

  • opticaltempest
  • · Replies 4 ·
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4
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5

How do I determine the dimension of a space in linear algebra?

  • mattmns
  • · Replies 2 ·
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2

Related Rates: Finding the Rate of Change of k with Respect to Time

  • jesuslovesu
  • · Replies 10 ·
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10
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1

Excellent question: A=infinity, V=pi?

  • silverdiesel
  • · Replies 4 ·
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4

Finding Critical Points and Local Extrema of a Multivariable Function

  • Black Orpheus
  • · Replies 4 ·
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4

2nd order Diff EQ with x^2*y'', what shall i do i missed it

  • mr_coffee
  • · Replies 4 ·
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4
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2

Finding Initial Velocity: Projectile Motion Problem

  • brandon26
  • · Replies 2 ·
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2

Perpendicular Vector at Point P on Surface x^3 + xy^3 - z^2 = -4

  • ElDavidas
  • · Replies 1 ·
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1

Number Theory Proofs: Square Numbers and Irrational Roots

  • randommacuser
  • · Replies 9 ·
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9

Is a(x,y,z) = (2ax,2ay,2az) a Vector Space?

  • stunner5000pt
  • · Replies 5 ·
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5

Linear Independence of two Functions

  • mattmns
  • · Replies 2 ·
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2

How Can Probability and Statistics Help Solve These Complex Problems?

  • Bunting
  • · Replies 1 ·
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1

[Discrete Math] Relations, symmetric and transitive

  • Servo888
  • · Replies 5 ·
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5

Linear Indepdant or not? the Wronskin = 0, so whats going on

  • mr_coffee
  • · Replies 4 ·
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4

Varation of Parameters fun diff EQ question, where do i go next?

  • mr_coffee
  • · Replies 8 ·
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8

Solving a Factoring Problem in Calculus without a Calculator

  • zombeast
  • · Replies 4 ·
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4

Direct expression for sum of squares

  • cscott
  • · Replies 5 ·
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5

Need Help with First/Second/Third Derivative relation

  • tangents
  • · Replies 1 ·
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1

Differentail Eq. For circle passing through origin

  • Isma
  • · Replies 10 ·
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10

Intersection of a plane and cylinder

  • Stevecgz
  • · Replies 2 ·
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2