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

First Order Linear Differential Equation - I can't solve it

  • jumbogala
  • · Replies 3 ·
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3

Unit tangent vector to a curve at a point

  • memish
  • · Replies 6 ·
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6

Prove a polynomial is a submersion

  • Office_Shredder
  • · Replies 6 ·
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6

Inequality with negative constants

  • zeion
  • · Replies 1 ·
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1

Equation of a place from a point and parametrics

  • memish
  • · Replies 2 ·
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2

Convergence of Series: Checking Equality by Changing Limits

  • bob1182006
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2

Invertible Matrices and Rank 1 Matrices: Understanding Linear Transpose

  • bananasplit
  • · Replies 3 ·
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3

Piecewise Problem: h(x) = |x-2| + |x+5|

  • ASmith
  • · Replies 4 ·
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4

Need help checking a proof on a cyclic group

  • Prometheos
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1

Volume of Solid: Find Y-Axis Rot. Region

  • africanmasks
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3

Understanding Orthogonal Projection: Formula and Definition Explained

  • graycolor
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1

Work Done by F from Po to P1 -90Nm

  • graycolor
  • · Replies 1 ·
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1

Radius and interval of convergence for

  • philnow
  • · Replies 7 ·
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7

Series Expansion: Finding Limit x→0 of 1/(Sin^2(x))-1/x^2

  • Physicist_FTW
  • · Replies 5 ·
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5

Solve Height of Water in Cubical Tank

  • KillerZ
  • · Replies 5 ·
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5

Finding the closest point on a plane to a point not on the plane

  • Subdot
  • · Replies 4 ·
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4

Limits in 0/0 Calculus I Problem

  • RaptorsFan
  • · Replies 4 ·
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4

Proof of Calculus III: Proving Limit as (x,y) -> (0,0) = 0

  • Mona1990
  • · Replies 2 ·
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2

Differential equation initial value prob

  • -EquinoX-
  • · Replies 3 ·
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3

Algerbraic logarithm method question

  • Cosmicon
  • · Replies 6 ·
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6
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16

Interpretation of random variable

  • Obraz35
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1
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1

Potential Due to a Group of Point Charges

  • queenspublic
  • · Replies 1 ·
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1

Find Fundamental Matrix for Variable Coefficient System

  • Physics_wiz
  • · Replies 3 ·
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3

Showing union of open sets is an open set?

  • cookiesyum
  • · Replies 1 ·
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1

Finding cluster points of a set?

  • cookiesyum
  • · Replies 5 ·
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5

Surface Area by rotating a curve

  • xo.Stardust
  • · Replies 4 ·
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4

Basic intergration problem still stuck help.

  • hornady
  • · Replies 1 ·
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1

Analysis involving Cardinality of Infinite sets

  • cchatham
  • · Replies 5 ·
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5
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2

Find Surface Area obtained by rotating a curve?

  • seichan
  • · Replies 7 ·
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7

Proving Invariance of Subsets under Group Actions

  • playa007
  • · Replies 1 ·
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1

Understanding Cross Product: A Refresher for 3(A x B) Calculation

  • camino
  • · Replies 2 ·
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2

Real Analysis - Prove the following: inf A = -sup(-A)

  • jmac85
  • · Replies 4 ·
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4

Proof of Parametrized Functions

  • H2instinct
  • · Replies 4 ·
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4
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4

Sequence satisfying a condition for all n

  • StarTiger
  • · Replies 3 ·
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3

How to graph r^2 = sin \theta in polar coordinates using TI-89

  • Bachelier
  • · Replies 2 ·
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2

Relatively prime isomorphism groups

  • dim&dimmer
  • · Replies 10 ·
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10

Discontinuity Limits: Does f(b) Mean Discontinuous at x=b?

  • Loppyfoot
  • · Replies 1 ·
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1

Is the Cartesian Product of Two Countable Sets Countable?

  • dancergirlie
  • · Replies 1 ·
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1

Existence of (complex) limit z->0 (z^a)

  • Knissp
  • · Replies 1 ·
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1

Finding Partial Derivatives with Implicit Differentiation

  • ktobrien
  • · Replies 10 ·
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10
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13

Verify that a sum converges to particular function (Fourier Series)

  • GamesMasta
  • · Replies 3 ·
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3

Differential equation and resonance and residues

  • -EquinoX-
  • · Replies 1 ·
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1

How can I find the value of delta when solving for a limit equation?

  • step1536
  • · Replies 3 ·
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3
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1

How to define a noncommutative derivative

  • luxxio
  • · Replies 2 ·
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2

How Many Paths Exist from (0, 0, 0) to (a, b, c) in a 3D Grid?

  • dancergirlie
  • · Replies 1 ·
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1

Understanding Fraction Splitting: Uncovering Rules and Techniques

  • authgeek
  • · Replies 1 ·
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1

Ball in 2D plane as a countable union of rectangles

  • Chasing_Time
  • · Replies 3 ·
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3

Green's Theorem: Solving A Complex Integral

  • manenbu
  • · Replies 5 ·
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5

Heat Equation + 2 Robin Boundary Conditions

  • PAR
  • · Replies 3 ·
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3

Please critic my proof (Limit converges to e)

  • moo5003
  • · Replies 4 ·
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4

Finding the Orthogonal Trajectory for a Family of Curves

  • Mechdude
  • · Replies 4 ·
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4

Integrating Arcsine: Solving for the Area Between Two Intervals

  • tjbateh
  • · Replies 12 ·
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12

How do I solve for the integral of 1/(xlnx) using logarithmic integration?

  • tjbateh
  • · Replies 17 ·
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17

Line integral in polar coordinates

  • manenbu
  • · Replies 6 ·
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6

Calculating eigenvectors of complex numbers

  • boneill3
  • · Replies 5 ·
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5

Solving by using cylindrical shell method

  • kira137
  • · Replies 2 ·
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2

Area of a surface of revolution around the x-axis

  • Bachelier
  • · Replies 1 ·
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1

Proving g is a Function of u in Partial Differentiation

  • Gregg
  • · Replies 1 ·
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1

Proving Independence of A & B: Probability Proof

  • jaejoon89
  • · Replies 2 ·
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2

Lim_{x to infty} x^r / e^x = 0, where r is real

  • fmam3
  • · Replies 13 ·
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13

Modular arith, number theory problem

  • imranq
  • · Replies 3 ·
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3

One last vector calculus problem

  • rock.freak667
  • · Replies 9 ·
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9

Prove Z can be partitioned into 3 parts

  • gotmilk04
  • · Replies 9 ·
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9

Partial Fractions turn out wrong

  • authgeek
  • · Replies 3 ·
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3

Probability Mass Function For Winning the Lottery

  • BlueScreenOD
  • · Replies 1 ·
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1
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3

Bayesian Probability - two criminals, blood, and various things

  • Astrofiend
  • · Replies 2 ·
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2

What Are the Steps for Using Change of Variables to Find Bounded Regions?

  • mattbonner
  • · Replies 4 ·
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4

Did I Find the Correct Vector Function for the Curve Intersection?

  • 1st1
  • · Replies 4 ·
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4

Continuous Function Problems AP Calculus

  • Loppyfoot
  • · Replies 3 ·
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3

Probability involving coin flips

  • Kalinka35
  • · Replies 4 ·
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4

Solving for Theta and Phi in Direction of Propagation | Homework Statement

  • guilesar
  • · Replies 6 ·
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6

Least Upper Bounds/Supremum Proof

  • jmirenzi
  • · Replies 4 ·
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4

Proof: Xn<N!: A Mathematical Exploration

  • dannysaf
  • · Replies 4 ·
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4

Proving the Inequality: x^n < y^n

  • evry190
  • · Replies 7 ·
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7

Lim |f(x)| = +infty and f decreasing implies lim f(x) = +infty

  • fmam3
  • · Replies 5 ·
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5

First order linear ODE-integrating factor has absolute value in it

  • kingwinner
  • · Replies 7 ·
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7

Proof of a system of linear equations

  • arpitm08
  • · Replies 4 ·
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4

Solving a Chain Rule Problem: Find Derivative of y

  • efekwulsemmay
  • · Replies 2 ·
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2

Find the subfield K of C generated by X= {1,i}

  • futurebird
  • · Replies 1 ·
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1

Alternative definition of sequence (real analysis)

  • StarTiger
  • · Replies 2 ·
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2

Two series I'm having problems with

  • manenbu
  • · Replies 6 ·
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6

Properties of the modulus - complex variables question

  • jaejoon89
  • · Replies 2 ·
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2

Discrete Random Variable Probloem

  • BlueScreenOD
  • · Replies 2 ·
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2

Isometry Functions on the Real Numbers

  • snipez90
  • · Replies 3 ·
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3

Green's Function Solution to ODE. Boundary Conditions Problem.

  • LukeMiller86
  • · Replies 1 ·
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1

Smoothness of a Parametrized Curve: Understanding the Definition

  • bodensee9
  • · Replies 3 ·
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3

Was my professor right to count me off?

  • Wishingwell
  • · Replies 3 ·
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3
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4

Prove or disprove that subsets a and b of x and f:x->y f(f-1(a))=a

  • fleuryf
  • · Replies 2 ·
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2

Linear algebra question (span?)

  • ckp
  • · Replies 9 ·
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9

Matrix of Transformation (non standard basis)

  • margaret37
  • · Replies 2 ·
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2

Finding Squares Between Cubes in Elementary Number Theory

  • tara123
  • · Replies 3 ·
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3

Two-parameter family of solutions of the second-order DE

  • KillerZ
  • · Replies 2 ·
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2