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

Cross Product Magnitude for Triangle Area

  • dr721
  • · Replies 2 ·
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2

Fraction reduction, euclid's algorithm

  • rayman123
  • · Replies 2 ·
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2

Have I done this differential equation correctly?

  • jakobs
  • · Replies 9 ·
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9

Nonlinear First order ODE: dy/dx = x + y^2

  • toneboy1
  • · Replies 20 ·
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20

What are some sets that satisfy A∩P(A)ε B?

  • bonfire09
  • · Replies 2 ·
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2

Second Derivative of Square Root Equation

  • Sakha
  • · Replies 2 ·
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2

Irreducible polynomial in Q[x] but redicuble in Z[x]

  • k3k3
  • · Replies 7 ·
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7

Comparing Open Sets in Metric Spaces

  • bedi
  • · Replies 12 ·
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12

How can I solve this integral involving cosine and sine functions?

  • lukatwo
  • · Replies 2 ·
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2

Complex exponential expressions.

  • lucasfish1
  • · Replies 3 ·
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3

Is the Operator L = d/dt + d^2/dx^2 + 1 Linear?

  • frenchkiki
  • · Replies 3 ·
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3

Solving the Indefinite Integration Problem

  • Saitama
  • · Replies 11 ·
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11

This sequence of functions looks simple but

  • unscientific
  • · Replies 5 ·
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5
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2

Three problems on Complex Analysis

  • carlosbgois
  • · Replies 2 ·
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2

Proving P(A)≥P(B): Probability Proof

  • kuahji
  • · Replies 5 ·
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5

Removal of snow during constant snowfall (flawed solution)

  • JSGandora
  • · Replies 2 ·
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2

Use Cauchy Integral Formula to evaluate the integral

  • DanniHuang
  • · Replies 1 ·
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1

Can someone help me understand what this problem is asking?

  • TrolliOlli
  • · Replies 4 ·
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4

Verify an expression is an implicit solution to a first order DE.

  • oddjobmj
  • · Replies 2 ·
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2

Product of two complex numbers = 0

  • vesu
  • · Replies 34 ·
2
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34

Is P4 a Subspace and What is Its Dimension?

  • bugatti79
  • · Replies 3 ·
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3

Understanding Reimann Sums: Interpreting Variables and Formulas

  • veegeedeejay
  • · Replies 6 ·
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6

Help with a subtle point concerning the proof of the p-series test

  • JJHK
  • · Replies 1 ·
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1

Differential Equations Intro material

  • dkotschessaa
  • · Replies 3 ·
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3

Rewriting a Vector in Terms of Two Arbitrary Vectors

  • Smx_Drummerboy
  • · Replies 9 ·
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9

Proof: Closedness of Non-Empty Set of Complex Numbers F

  • arpitm08
  • · Replies 12 ·
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12

Proving 2 Does Not Divide 1 with Natural/Integer Properties

  • beep
  • · Replies 7 ·
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7
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10

Solve Swimmer's Speed to Drift 1 Mile: 4 mi/h

  • JJRKnights
  • · Replies 1 ·
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1

Limit Proof with Rational Functions

  • Villyer
  • · Replies 2 ·
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2

Prove algebraically that lim x->0 (x^2)*cos(1/ x^(1/3)) does not exist

  • quadreg
  • · Replies 18 ·
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18

Proving the Limit of a Square Root Using Epsilon and Delta

  • drawar
  • · Replies 5 ·
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5

Solutions to a Simple Differential Equation

  • icefall5
  • · Replies 11 ·
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11

Angle Between Two Vectors: Solving for θ

  • nabelekt
  • · Replies 9 ·
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9

Simplifying Integration by Parts: Understanding the Solution

  • Jay9313
  • · Replies 4 ·
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4

What Is the Lebesgue Number Lemma in Metric Spaces?

  • bedi
  • · Replies 12 ·
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12
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2
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11
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5
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5

D'Alembert question - boundary conditions parts

  • Ratpigeon
  • · Replies 1 ·
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1

Solving an Algebraic Proof for Vector Equation

  • Jormungandr
  • · Replies 11 ·
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11

How to prove that the sum of two rotating vectors in an ellipse?

  • ppoonamk
  • · Replies 1 ·
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1

Showing that the directional derivatives exist but f is not continuous

  • Hernaner28
  • · Replies 10 ·
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10

Finding a Particular Solution for a Non-Homogeneous PDE

  • roldy
  • · Replies 3 ·
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3

Stuck on the integral: arctan (4t) dt

  • dlikes
  • · Replies 1 ·
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1

How Does Fourier Analysis Reveal the Series Expansion of Coth(pi)?

  • Ratpigeon
  • · Replies 10 ·
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10

Fundemental lemma of the calculus of variations

  • TooFastTim
  • · Replies 3 ·
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3

Evaluate this index Integral containing Trig

  • bugatti79
  • · Replies 5 ·
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5

Solving limits containing trig expressions

  • PhizKid
  • · Replies 3 ·
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3

Estimating the volume of a solid

  • Philip Wong
  • · Replies 21 ·
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21

A couple of probability homework questions

  • 1MileCrash
  • · Replies 1 ·
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1

Probability, There are 20 laborers to four different construction jobs

  • Kinetica
  • · Replies 13 ·
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13
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11

Help with the conventions used for curl operator

  • ppoonamk
  • · Replies 3 ·
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3

Finding the Angle Between Two Planes: A Different Approach

  • unscientific
  • · Replies 2 ·
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2

Integrating cot(x) by partswhat's wrong?

  • abel_ghita
  • · Replies 9 ·
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9

Elementary algebra of complex variables problem

  • jdinatale
  • · Replies 8 ·
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8

Solving the PDE: Finding a General Solution

  • Greger
  • · Replies 10 ·
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10

Finding the Sum of Sin2(na)/n2 Using Fourier Series for f(x)

  • Ratpigeon
  • · Replies 13 ·
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13

Linear algebra-2x2 RREF matrices

  • pyroknife
  • · Replies 7 ·
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7

Help with what I think it's an impossible integral

  • stonecoldgen
  • · Replies 2 ·
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2

Abstract Algebra question regarding coprimes

  • srfriggen
  • · Replies 12 ·
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12

Topology (showing set is not open)

  • Polamaluisraw
  • · Replies 8 ·
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8

Proving x=y using field axioms in R | Field Axiom Proof

  • Tomp
  • · Replies 5 ·
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5

Linear transformations question

  • Rackhir
  • · Replies 4 ·
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4

Finding the volume of a solid revolution (shell method)

  • Cottontails
  • · Replies 1 ·
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1

Simple difference quotient question. Function -> simplify answer

  • nukeman
  • · Replies 15 ·
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15

Fundamental theorem of calculus

  • e^(i Pi)+1=0
  • · Replies 2 ·
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2

[Linear Algebra] For which a is 0 an eigenvalue?

  • Ortix
  • · Replies 7 ·
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7

Calculate Pade Approximation for f(x)=1-\frac{1}{2}x+\frac{1}{3}x^2-...

  • matematikuvol
  • · Replies 1 ·
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1

What Are the Subsequential Limit Points of the Sequence X_n = cos(n)?

  • CyberShot
  • · Replies 4 ·
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4

Fundamental Theorem of Calculus

  • ralfsk8
  • · Replies 43 ·
2
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43
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2

Calculating Surface Area of a Torus

  • stonecoldgen
  • · Replies 1 ·
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1

Need Guidance: Area in between Polar Curves

  • GavinMath
  • · Replies 1 ·
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1

Proving sufficiency via likelihood functions

  • BlueKazoo
  • · Replies 5 ·
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5

Symmetric positive definite matrix

  • IniquiTrance
  • · Replies 2 ·
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2

Probability Problem 1.15 From Statistical and Thermal Physics, Reif

  • thenewsteven
  • · Replies 3 ·
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3

Subsets and sets symbol explenation (Very simple question please have a look)

  • astrozilla
  • · Replies 1 ·
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1

Cartesian Equation of a plane containing 3 points

  • Blackh4wk
  • · Replies 1 ·
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1

Partial Derivatives of U: Solving for Unknown Variables

  • unscientific
  • · Replies 4 ·
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4

Matrix of. Linear operator question

  • frowdow
  • · Replies 3 ·
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3

Discrete math - simple formalism question

  • oferon
  • · Replies 3 ·
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3

Generalizing the Theorem: Number of Solutions to x^k ≡ 1 (mod n)

  • Arian.D
  • · Replies 4 ·
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4

How Can I Solve This Challenging Bernoulli Equation?

  • cragar
  • · Replies 7 ·
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7

Why Can't I Find the Minimum Value for G(x) on the Interval [0, π/2]?

  • ronho1234
  • · Replies 8 ·
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8

Integrate (x^2)exp(-x^2)dx from - to + infinity

  • clope023
  • · Replies 4 ·
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4

DE book does not justify this claim

  • 1MileCrash
  • · Replies 11 ·
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11

Complex Arithmetic - Mathematica agrees with me, textbook says I'm wrong.

  • jdinatale
  • · Replies 1 ·
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1

Very simple exponential function quesiton

  • phospho
  • · Replies 14 ·
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14

Proving trig identities with dot and cross products

  • cytochrome
  • · Replies 6 ·
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6

How Do Non-Perpendicular Unit Vectors Affect Coordinate Transformation?

  • unscientific
  • · Replies 9 ·
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9
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3

Proving Bounds for a Riemann Sum: Part II

  • ronho1234
  • · Replies 3 ·
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3

Differentiating to find one unknown function out of three?

  • mimi.janson
  • · Replies 2 ·
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2

Specific solution of diff eq, no initial value

  • cowmoo32
  • · Replies 4 ·
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4

How Fast is the Car Traveling Along the Highway?

  • e^(i Pi)+1=0
  • · Replies 3 ·
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3

Dot product of vector and a dyadic.

  • htdIO
  • · Replies 7 ·
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7