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

Square lemma for Paths, Homotopy

  • gauss mouse
  • · Replies 2 ·
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2

Finding angle between two points on the surface of a sphere.

  • yungman
  • · Replies 19 ·
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19

Understanding Coordinate Basis in Wald's GR

  • cpsinkule
  • · Replies 2 ·
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2
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2

Find center of mass and coordinates using double integrals?

  • monnapomona
  • · Replies 5 ·
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5

Is the Inverse Calculation Correct for Matrix Polynomial Equation?

  • MoreDrinks
  • · Replies 7 ·
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7

Trigonometry identity sin(pi)cos(wpi)+cos(pi)sin(wpi)

  • izen
  • · Replies 2 ·
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2

Determine A−1 (Elementary Row Operations)

  • padores
  • · Replies 1 ·
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1

Differential equations by series and also by an elementary method

  • Fachni
  • · Replies 1 ·
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1

Limit of Radical Quotients: Is the Answer 3/4?

  • p.ella
  • · Replies 2 ·
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2

Description of surface, vector calculus

  • ohlala191785
  • · Replies 5 ·
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5

Differential Equations in Matrices

  • Xinthose
  • · Replies 7 ·
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7

Help with vector operator Del.

  • cesaruelas
  • · Replies 6 ·
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6

Question about index of notation

  • mesa
  • · Replies 13 ·
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13

Non-Transcendental Numbers Def. What if we allow √14 as a coefficicie?

  • Swimmingly!
  • · Replies 3 ·
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3

Proving the Relationship between Velocity and Curvature in a Vector Equation

  • Baumer8993
  • · Replies 1 ·
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1

Radiation and differential equations

  • Pqpolalk357
  • · Replies 12 ·
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12

Evaluate Lim → 0, radicals in the numerator and denominator

  • physphys
  • · Replies 7 ·
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7

Understanding Multiplicative Inverses and Cyclic Groups

  • CAF123
  • · Replies 11 ·
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11

Using Contour Integration and the Residue Theorem

  • sikrut
  • · Replies 9 ·
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9

Differential Calculus Word Problem

  • shadow15
  • · Replies 3 ·
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3

Integrating Volume via Shells: What Went Wrong with the Bounds?

  • PhizKid
  • · Replies 1 ·
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1

Slope of Secant Homework: y=x^2+x, P(1,2) & Q(2,6)

  • physphys
  • · Replies 4 ·
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4

Verify every number of a family of functions is also a solution

  • Aerospace93
  • · Replies 4 ·
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4

Need help with partial differential equation

  • Needhelp2013
  • · Replies 13 ·
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13

Integrate 1/(x-1)(sqrt(x^2-3x+2))

  • Denisse
  • · Replies 2 ·
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2

DE Derivative Using Euler's Method

  • MechE2015
  • · Replies 1 ·
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1

Area bounded by a curve and arbitrary line

  • PhizKid
  • · Replies 3 ·
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3

Why Does Boundedness of a Function Affect Its Oscillation?

  • Arkuski
  • · Replies 1 ·
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1

Is the Dot Product of Two Vector Pairs Always Commutative?

  • digipony
  • · Replies 5 ·
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5

Finding the eigenvectors of a 2nd multiplicity engenvalue

  • xdrgnh
  • · Replies 3 ·
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3

Estimating the error of an iterative sequence

  • jeku1987
  • · Replies 5 ·
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5

Struggling with Integrating (xe^(2x))/(1+2x)^2? Get a Helpful Tip Here!

  • autodidude
  • · Replies 9 ·
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9

Evaluate the limit by change of variable

  • p.ella
  • · Replies 6 ·
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6

Please correct my mistake in this limits exercise

  • Andrax
  • · Replies 4 ·
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4

Factoring Out Ckq in Summation: Proper or Breaking Rules?

  • digipony
  • · Replies 3 ·
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3

LInear algebra coding question

  • Mdhiggenz
  • · Replies 1 ·
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1
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2

What is the limit of (1-tanh(x))/e^(-2x)?

  • aaaa202
  • · Replies 2 ·
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2

Multiplicity of an eigen value , k = dim[ Null(T - k I)^( dim V) ]

  • vish_maths
  • · Replies 10 ·
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10

Proving Completeness of $(\mathbb{R},d)$

  • Shoelace Thm.
  • · Replies 8 ·
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8

Proving the Cauchy-Schwarz Inequality

  • VertexOperator
  • · Replies 14 ·
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14

Understanding Homogeneous Systems - Expert Answers and Guidance

  • manal950
  • · Replies 1 ·
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1

Two related questions about matrix algebra

  • kwal0203
  • · Replies 8 ·
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8

Differential equations - cannot solve one

  • luuurey
  • · Replies 18 ·
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18

Double transpose of a linear transformation

  • SqueeSpleen
  • · Replies 12 ·
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12

Solving the Integral: sec(x)^2 / 4+tan(x)^2

  • whatlifeforme
  • · Replies 9 ·
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9

Where is the error in this argument

  • Bachelier
  • · Replies 1 ·
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1

Proving Finite Order Elements Form a Subgroup of an Abelian Group

  • rideabike
  • · Replies 2 ·
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2

Simple rate of change problem?

  • physphys
  • · Replies 4 ·
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4

Mean Value and Rolle's Theorem

  • Torshi
  • · Replies 2 ·
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2

Series representation of 1/(x+1)^2

  • Lifprasir
  • · Replies 3 ·
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3

Very Hard Integral (from int Coulomb) with -3/2 power + others

  • pr0me7heu2
  • · Replies 1 ·
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1

Finding Water Depth in an Inverted Cone

  • lionely
  • · Replies 6 ·
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6

M/M/1 Queue System: Calculating A, B, C

  • lina29
  • · Replies 6 ·
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6

Differential Form: Closed/Exact

  • Karnage1993
  • · Replies 5 ·
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5

Einstein Notation - Not sure if my answers are right

  • unscientific
  • · Replies 5 ·
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5

A problem about surface element

  • VHAHAHA
  • · Replies 7 ·
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7

Find the distance traveled of a piece of prey dropped by a hawk.

  • QuantumChemist
  • · Replies 1 ·
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1

Give a counter-example that shows Bolzano-Weirstrass is unvalid in IR2

  • tsuwal
  • · Replies 2 ·
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2

Volume of Region Bounded by y = e^(-x^2) and y = 0 About the y-Axis

  • whatlifeforme
  • · Replies 1 ·
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1

Metric Spaces: Exercise 1.14 from Introduction to Topology (Dover)

  • tsuwal
  • · Replies 3 ·
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3

How do I integrate sec(x) sin(nx) over a specific interval?

  • mathskier
  • · Replies 6 ·
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6

Integration over a discontinuity

  • nrivera1
  • · Replies 4 ·
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4

Understanding the Complex Solutions of sqrt(i) and log(sqrt(i))

  • Bachelier
  • · Replies 4 ·
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4

Find the integrating factor u(x) for this exact differential equation

  • e^(i Pi)+1=0
  • · Replies 1 ·
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1

Laplace transforms to solve linear ODE's

  • schmiggy
  • · Replies 5 ·
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5

Prove that the extension is Normal

  • Oster
  • · Replies 1 ·
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1

How Does Injectivity of a Homomorphism Affect Its Kernel and Image?

  • CAF123
  • · Replies 13 ·
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13

Find all unit vectors orthogonal to the line

  • annpaulveal
  • · Replies 3 ·
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3

Finding the Density of X with Exponential and Random Variables

  • gajohnson
  • · Replies 6 ·
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6

Discrete Optimization Question

  • gajohnson
  • · Replies 10 ·
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10

Does Convergence of Sum(z_j) and Sum((z_j)^2) Imply Convergence of Sum(|z_j|^2)?

  • ilikegroupreps
  • · Replies 2 ·
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2

Please check my Contrapositive statement

  • Bachelier
  • · Replies 7 ·
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7

Differential Equations and Initial Values

  • Northbysouth
  • · Replies 3 ·
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3
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5

Using differentiation to find maximum length problems

  • lmstaples
  • · Replies 5 ·
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5

Area of an ellipse using double integrals

  • Fluxthroughme
  • · Replies 23 ·
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23

What's the Fourier transform of these functions?

  • snickersnee
  • · Replies 4 ·
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4

Finding a Taylor Series from a function and approximation of sums

  • Illania
  • · Replies 5 ·
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5

Equation of Tangent Line to Curve at Point

  • AmagicalFishy
  • · Replies 3 ·
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3

MLE Homework: Distance Measurement with Odometer Error

  • Yagoda
  • · Replies 3 ·
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3

Question about infimums and closed sets

  • Fractal20
  • · Replies 3 ·
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3

Green's identities for Laplacian-squared

  • TaPaKaH
  • · Replies 1 ·
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1

Quick question about Causal LTI system

  • ElijahRockers
  • · Replies 9 ·
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9

Proving the Identity for cosh Using Exponential Function Properties

  • aaaa202
  • · Replies 7 ·
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7

Integrating Inverse Trigonometric Functions with Substitution

  • iRaid
  • · Replies 7 ·
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7

Calculating the probability of an event

  • DODGEVIPER13
  • · Replies 4 ·
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4

Is My Solution to the Reduction of Order Problem Correct?

  • bigt9
  • · Replies 1 ·
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1

Maxima and Minima of two-variable functions word problem

  • carleon
  • · Replies 3 ·
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3

Expressing a vector as a linear combination

  • zabumafu
  • · Replies 8 ·
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8

Need help with deciphering calculus 2 problem

  • Al3x L3g3nd
  • · Replies 2 ·
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2

What is the Shell Method for Evaluating Volume of Revolved Solids?

  • icesalmon
  • · Replies 2 ·
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2

Associativity of Group Operation

  • port31
  • · Replies 2 ·
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2

Show that matrix A is not invertible by finding non trivial solutions

  • black_hole
  • · Replies 8 ·
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8

Find the equation of the line tangent to two parabolas

  • flemonster
  • · Replies 5 ·
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5

Linear algebra determinant proof

  • Mdhiggenz
  • · Replies 15 ·
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15

Linear Algebra Matrix Inverse Proof

  • RoKr93
  • · Replies 4 ·
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4

Analyzing One-Sided Limits in e^(1/(6-x)) as x Approaches 6+

  • tsaitea
  • · Replies 4 ·
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4

Proof: Show that if det(A)=1, then adj(adj(A))=A

  • Mdhiggenz
  • · Replies 10 ·
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10