General Math Forum

Join in expert discussion on general math topics that are not applicable to the specific categories. This includes topics are usually high school math level. Homework help is available.

Threads

Undergrad Interesting property of idempotent 10-adic number

  • Happiness
  • · Replies 9 ·
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9

What Is the Minimum Value of $f$ with Given Conditions?

  • Albert1
  • · Replies 2 ·
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2
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7

Graduate Can All Subnumbers of a Number Be Prime?

  • micromass
  • · Replies 16 ·
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16

Undergrad Function for line segment configuration between dots

  • Labyrinth
  • · Replies 6 ·
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6

Finding real solutions to (1+x²)(1+x³)(1+x⁵)=8x⁵

  • anemone
  • · Replies 10 ·
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10

Undergrad Hyperbola: Why Two Branches Facing Opposite Directions?

  • parshyaa
  • · Replies 1 ·
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1

Simplifying a square root expression

  • tmt1
  • · Replies 6 ·
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6

Graduate Trisecting an angle with compass and straightedge

  • MartinV
  • · Replies 7 ·
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7
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5

What is the value of s in the equation 1/2 + 2/5s = s - 3/4?

  • EngineerJay
  • · Replies 4 ·
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4

Simplify thisIs My Expression Simplification Correct?

  • tmt1
  • · Replies 2 ·
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2

High School Smallest number whose sin(x) in radian and degrees is equal?

  • Phys12
  • · Replies 10 ·
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10

Derive a Generalised Formula for c-d with Respect to θ

  • mfaisal
  • · Replies 1 ·
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1

Partial Fraction Simplification

  • tmt1
  • · Replies 1 ·
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1

Undergrad Find the square root of (-2-3)^2?

  • parshyaa
  • · Replies 11 ·
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11

High School What Does Time Squared Really Mean in Physics?

  • marioisaac
  • · Replies 18 ·
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18

Undergrad Where Should the Bridges be Built to Minimize Road Length?

  • Andreas C
  • · Replies 4 ·
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4

High School Roadmap to learn mathematics from basics to advanced level

  • FishBowl44
  • · Replies 11 ·
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11

How to Evaluate This Interesting Expression?

  • anemone
  • · Replies 4 ·
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4

Undergrad Is my proof that lcm(a,b) = ab/gcd(a,b) valid?

  • River Robles
  • · Replies 1 ·
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1

Undergrad Calculating the Surface Area of a Sphere: How Does it Differ?

  • AyoubEd
  • · Replies 5 ·
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5

Solution to Trigonometric System

  • anemone
  • · Replies 3 ·
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3

Clarifying some rules on solving quadratic equation

  • NotaMathPerson
  • · Replies 4 ·
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4

Undergrad Is it possible for an ellipse to have only one focus?

  • parshyaa
  • · Replies 13 ·
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13

Graduate Has anything similar to the Riemann hypothesis ever solved

  • mustang19
  • · Replies 2 ·
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2

Simplifying an expression with exponents

  • tmt1
  • · Replies 1 ·
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1

Combined Buoyancy and Dynamics of Moving Mechanical Systems

  • shoutie1980
  • · Replies 2 ·
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2

Undergrad Proof of double angle formulas using Euler's equation

  • SamRoss
  • · Replies 2 ·
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2

Can you solve this right triangle puzzle with a unique angle ratio?

  • Wilmer
  • · Replies 6 ·
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6

Prove Inequality Problem for Real Numbers $a, b, c$ with $a + b + c = 1$

  • anemone
  • · Replies 5 ·
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5

Formula for calculating DPS (damage per second)

  • El Demente
  • · Replies 2 ·
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2

Undergrad Multivariable function that is injective?

  • NotASmurf
  • · Replies 10 ·
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10

Undergrad Transformation needed to fit three conditions

  • nomadreid
  • · Replies 8 ·
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8

Evaluate Quotient: $ab+cd \over ad+bc$

  • anemone
  • · Replies 7 ·
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7

How Do You Calculate Loss Percentage in a Quadratic Equation Problem?

  • NotaMathPerson
  • · Replies 2 ·
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2

Undergrad What is *not* a Vector Function?

  • nweissma
  • · Replies 5 ·
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5

Undergrad Proving an inequality from an equation

  • Happiness
  • · Replies 7 ·
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7

Graduate Is this a valid physical analogy for the Riemann Hypothesis?

  • mustang19
  • · Replies 5 ·
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5

Undergrad Math to understand Monstrous Moonshine?

  • CuriousLearner
  • · Replies 1 ·
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1

What is the ratio of sin 5x to sin x in this Trigonometric Challenge?

  • anemone
  • · Replies 2 ·
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2

Evaluate Fraction: Simplify $\frac {x^2 + 1 - 1}{x^2 + 1}$

  • tmt1
  • · Replies 2 ·
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2

Proving the Relation between $a,\,b,\,c$ and $x,\,y,\z$

  • anemone
  • · Replies 2 ·
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2

High School What are the foci of an ellipse?

  • avito009
  • · Replies 6 ·
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6

Undergrad Can an envelope curve cut its member curve twice?

  • Happiness
  • · Replies 3 ·
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3

High School Angles with two adjacent sides in trigonometry

  • Liam C
  • · Replies 7 ·
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7

Inverse variation or direct or neither?

  • woof123
  • · Replies 1 ·
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1

What Is the Fastest Method to Solve This Complex Fraction Equation?

  • NotaMathPerson
  • · Replies 2 ·
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2

High School Dividing the jewel maker's diamonds -Riddle (Easy)

  • Andreas C
  • · Replies 2 ·
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2

What is the value of the floor function challenge?

  • anemone
  • · Replies 2 ·
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2

High School Solving absolute value equation

  • Mr Davis 97
  • · Replies 1 ·
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1

High School What unsolved geometry problems are there?

  • Einstein's Cat
  • · Replies 2 ·
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2

Find Real Solutions: Solving $\sqrt{4a-b^2}=\sqrt{b+2}+\sqrt{4a^2+b}$

  • anemone
  • · Replies 2 ·
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2

Undergrad Basel problem, primes and π²/6

  • Borek
  • · Replies 5 ·
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5

Find the ratio of lines in a circle

  • mitaka90
  • · Replies 3 ·
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3

How can we prove the inequality challenge for positive real numbers?

  • anemone
  • · Replies 3 ·
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3

Converting 5/9 to decimal in fraction equation with F=77

  • Duckfan
  • · Replies 1 ·
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1

Undergrad Why add zero terms for missing powers in polynomial long division

  • kyphysics
  • · Replies 6 ·
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6

High School How can I perform decimal computation by hand?

  • Mr Davis 97
  • · Replies 5 ·
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5

Undergrad Sqrt(a) + sqrt(b) = r, can r be whole?

  • johann1301h
  • · Replies 11 ·
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11

High School Finding the first 40 positive odd integers

  • Mr Davis 97
  • · Replies 2 ·
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2

Palindromic Primes: Find A from 1000-2000

  • Albert1
  • · Replies 3 ·
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3

Equation for Finding Solutions of x and y

  • Albert1
  • · Replies 9 ·
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9

How can I divide a polynomial by (x+k) using synthetic division?

  • markosheehan
  • · Replies 1 ·
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1

High School How many rings can you guess? -Riddle

  • Andreas C
  • · Replies 9 ·
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9

My First Algebra Question: Associative Property

  • Duckfan
  • · Replies 1 ·
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1

Undergrad What are monomials, binomials, and polynomials?

  • kyphysics
  • · Replies 1 ·
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1

Undergrad Prove slant surface of a cone is always a circular sector

  • Happiness
  • · Replies 3 ·
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3

High School How to find out various sine values from its graph.

  • Phys12
  • · Replies 3 ·
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3

High School My combination theorem : square

  • fatay
  • · Replies 3 ·
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3

Undergrad Calculating Headwind Component for Trigonometric Wind Triangle Problem

  • Cristiano
  • · Replies 4 ·
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4

Undergrad How do you prove the sum of squares 1+4+9+16+... equals 0?

  • Qemikal
  • · Replies 10 ·
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10

High School Are there patterns in pi's digits?

  • thetexan
  • · Replies 6 ·
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6

Throwing in Towel: Finding an LCD for 186 and 300

  • Duckfan
  • · Replies 8 ·
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8

Solving for $X$: Find $X$ When $X=Y^2$

  • Albert1
  • · Replies 1 ·
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1

Undergrad What is the opposite of epsilon

  • Pjpic
  • · Replies 7 ·
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7

How Can These Trigonometric Equations Be Solved?

  • matyw
  • · Replies 4 ·
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4

How to Prove the IMO Inequality Challenge for Positive Reals?

  • anemone
  • · Replies 2 ·
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2

Surjectivity of x²+3 for Real Numbers: Testing for Surjectivity

  • markosheehan
  • · Replies 3 ·
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3

Undergrad Turning radius of curved plane on an inclined plane

  • karen_lorr
  • · Replies 4 ·
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4

Finding circuit length with walking, riding, and driving times

  • NotaMathPerson
  • · Replies 5 ·
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5

Interview with a Mathematical Physicist: John Baez Part 2 - Comments

  • john baez
  • · Replies 10 ·
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10

Undergrad Solve for the offset of two sin waves

  • NotASmurf
  • · Replies 1 ·
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1

High School How is it that mathematics describe reality so well?

  • raphalbatros
  • · Replies 27 ·
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27

Undergrad Is this condition for infinite roots wrong?

  • vopros217
  • · Replies 4 ·
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4

Compare 2^2016 and 3^2017·7^604

  • anemone
  • · Replies 2 ·
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2

What is the Cost of One Jump Ring in a $8 Pack of 1000?

  • Enoonmai
  • · Replies 3 ·
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3

Graduate Function which measures "error"

  • hunt_mat
  • · Replies 5 ·
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5

High School In trigonometry, what is the period of a wave?

  • awholenumber
  • · Replies 15 ·
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15

Word problem: distance and profit

  • NotaMathPerson
  • · Replies 2 ·
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2

Solve System of Equations: 4x^2+25y^2+9z^2-10xy-15yz-6xz=0

  • kaliprasad
  • · Replies 4 ·
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4

Word problem: distance traveled

  • NotaMathPerson
  • · Replies 1 ·
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1

Undergrad I feel like I worry more than necessary.

  • Eclair_de_XII
  • · Replies 5 ·
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5

Graduate The factorial of a rational number, the gamma function not used

  • H.B.
  • · Replies 16 ·
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16
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1

Help setting up equations for income tax and mixture word problems

  • NotaMathPerson
  • · Replies 16 ·
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16

Setting up a revenue equation without a given quantity

  • NotaMathPerson
  • · Replies 1 ·
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1

Rational Root of $ax^3+bx+c=0$ is Product of 2 Rational Roots

  • kaliprasad
  • · Replies 1 ·
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1

High School How Do Theta, Opposite Side, and Hypotenuse Relate in Trigonometry?

  • awholenumber
  • · Replies 6 ·
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6

Undergrad When is a quadratic function more efficient than a linear function?

  • quicksilver123
  • · Replies 16 ·
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16