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 How GIMPS found the largest known prime number in 2016

  • DrClaude
  • · Replies 9 ·
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9

What is the significance of the recent discovery of the largest prime number?

  • kaliprasad
  • · Replies 3 ·
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3

Undergrad A check: shortest distance from point to line

  • julian
  • · Replies 2 ·
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2

What are the dimensions of the shapes in this tangram problem?

  • narledge
  • · Replies 3 ·
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3

Solving for frequency and angle in sinc function equation

  • NiToNi
  • · Replies 2 ·
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2

Prove the sum of a² and d² is equal the sum of b² and c².

  • anemone
  • · Replies 5 ·
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5

Undergrad What main branches of mathematics are there?

  • Mathmanman
  • · Replies 8 ·
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8

Using Substitution to Solve Cubic Equations

  • Harry2
  • · Replies 3 ·
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3

Undergrad Silly theoretical area question

  • tim9000
  • · Replies 7 ·
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7

Proving $a^2-3a-19$ is Not Divisible by 289

  • kaliprasad
  • · Replies 4 ·
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4

How Do You Calculate the Entry Velocity of a Ball into a Basketball Hoop?

  • Mango12
  • · Replies 2 ·
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2

Finding friction force on a ball passing through a net

  • Mango12
  • · Replies 16 ·
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16

Finding parallelogram dimensions inside a 15×20.5in rectangle

  • Storminnorman
  • · Replies 1 ·
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1

Undergrad Pulling a negative out of a square root

  • Mr Davis 97
  • · Replies 2 ·
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2

How to solve this math problem

  • karush
  • · Replies 1 ·
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1

Angular momentum and a basketball

  • Mango12
  • · Replies 15 ·
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15

High School Solving 'Hundepuzzle' with High School Maths Only

  • pioneerboy
  • · Replies 30 ·
2
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30

Solve Exponent Questions: (2^2015)*(5^2019)

  • Mord3Kay
  • · Replies 2 ·
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2

Undergrad Does bin packing with item count limits have a standard name?

  • Mentallic
  • · Replies 6 ·
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6

*Simultaneous equation 4 variables

  • karush
  • · Replies 1 ·
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1

High School Representation of (x-7) and (x+1)

  • #neutrino
  • · Replies 6 ·
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6

High School What is the discriminant b² - 4ac in the quadratic formula?

  • askor
  • · Replies 8 ·
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8

Undergrad Solve for a constant in an equation

  • Dean Whaley
  • · Replies 4 ·
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4

Undergrad How to Prove an Inverse Function Using Equating Square Roots?

  • #neutrino
  • · Replies 9 ·
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9

Prove the sum is less than 2016

  • anemone
  • · Replies 2 ·
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2

Calculate the sides of a triangle knowing its area, perimeter and angle A.

  • loquetedigo
  • · Replies 7 ·
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7

Undergrad Greatest common factor with exponents of first input

  • DirichletHole
  • · Replies 4 ·
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4

Undergrad Brainstorm and confusion of concepts

  • Bruno Tolentino
  • · Replies 1 ·
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1

Undergrad What is the connection between Ramanujan and the value of infinity?

  • Evenus1
  • · Replies 1 ·
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1

Who disliked/was bad at Math in High School?

  • Berigs
  • · Replies 13 ·
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13

Graduate How Can the Sum of All Natural Numbers Equal -1/12?

  • rollingstein
  • · Replies 3 ·
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3

Can $\sqrt{8}^{\sqrt{7}}$ Ever Be Greater Than $\sqrt{7}^{\sqrt{8}}$?

  • anemone
  • · Replies 8 ·
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8

High School How can i solve joint proportion?

  • the legion
  • · Replies 3 ·
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3

Undergrad Resolve for C: A[(B+C)^D-C^D]=E

  • MrXY
  • · Replies 1 ·
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1

Proof problem outside triangle geometry

  • prior
  • · Replies 1 ·
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1

Insights The Millennium Prize Problems: Part I - Comments

  • kreil
  • · Replies 13 ·
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13

Undergrad Lifting a square tile by one of its corners

  • Ocata
  • · Replies 10 ·
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10

Finding arccos(cos 4π/3) with range restriction

  • Guest2
  • · Replies 4 ·
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4

High School Summation Formula for Adding by 3's: n(2n+1)/3

  • NameIsUnique
  • · Replies 1 ·
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1

Graduate What Connects Different Types of Geometry in Mathematics?

  • tgt
  • · Replies 6 ·
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6

High School How do you eliminate one term of several in a denominator?

  • 5P@N
  • · Replies 11 ·
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11

Undergrad Can b always be greater than 0?

  • Alpharup
  • · Replies 4 ·
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4

Why does this proportion work?

  • mathgeek7365
  • · Replies 1 ·
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1

Undergrad Is N Divisible by 2, 3, 5, or 7?

  • Cosmos
  • · Replies 7 ·
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7

Find positive integer solutions

  • anemone
  • · Replies 2 ·
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2

High School Finding Y when X is unknown in y=x-c equations

  • ThanaH
  • · Replies 2 ·
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2

Undergrad Is a^2+c Always a Prime Number Under Certain Conditions?

  • shivakumar06
  • · Replies 4 ·
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4

Graduate Fascinating number theory relationship

  • willr12
  • · Replies 3 ·
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3

High School The how to represent an inequality in a graph question

  • #neutrino
  • · Replies 3 ·
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3

Is Floor Function Equality Proven for All Non-Negative x?

  • anemone
  • · Replies 2 ·
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2

Insights Partial Fractions Decomposition - Comments

  • Mark44
  • · Replies 3 ·
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3

High School What does this notation "<>" mean?

  • 5P@N
  • · Replies 9 ·
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9

Undergrad The Value of 100! to 110! Factorial Problem

  • Cosmos
  • · Replies 12 ·
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12

Graduate Testing primes using factorials

  • binbots
  • · Replies 5 ·
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5

Fractions/brackets/parentheses and powers.

  • Jackie In Italy
  • · Replies 3 ·
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3

Finding Symmetries of a Function

  • megacat8921
  • · Replies 3 ·
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3

How to fit a quadratic function to two points?

  • samir
  • · Replies 4 ·
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4

Is $10^a\lt 127$ True for the Real Root of $x^3-3x-3=0$?

  • anemone
  • · Replies 5 ·
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5

High School Why does the 2*xi(n-1)*delta term cancel in this equation?

  • SansaStark
  • · Replies 2 ·
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2

Why Does an Inequality Sign Flip?

  • emacat
  • · Replies 4 ·
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4

Undergrad Finding a and b where ab/(a+b) = 2016

  • Cosmos
  • · Replies 6 ·
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6
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3

High School Multiplying and dividing real and complex numbers

  • Einstein's Cat
  • · Replies 3 ·
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3

How can trigonometric functions be simplified using specific values?

  • Guest2
  • · Replies 4 ·
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4

Graduate Theorems that can't be proved by induction

  • Fredrik
  • · Replies 8 ·
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8

Undergrad How to compare powers with different bases mentally

  • vin300
  • · Replies 3 ·
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3

Graduate What is a Russian style in mathematics?

  • Demystifier
  • · Replies 1 ·
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1

How Many Digits in the Number $2^{100}$?

  • kaliprasad
  • · Replies 8 ·
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8

Undergrad Why is e^x its own derivative if e came from compound interest?

  • Warp
  • · Replies 9 ·
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9
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3
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2

Undergrad Why does x^x^x^x^...=n only work for 1/e ≤ n ≤ e?

  • MAGNIBORO
  • · Replies 7 ·
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7

High School Why is the number zero crucial in math and science?

  • {~}
  • · Replies 28 ·
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28

Are the Roots of cx^2 + 2ax +b = 0 Real?

  • Lytk
  • · Replies 5 ·
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5

High School Why are dimensions always at right angles?

  • Sangam Swadik
  • · Replies 31 ·
2
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31

The Search for an 'A' Whose Powers All Start with 9

  • Albert1
  • · Replies 1 ·
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1

World's hardest easy geometry problem

  • livinonaprayer
  • · Replies 24 ·
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24

High School Who and when - simple piece of geometry

  • julian
  • · Replies 23 ·
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23

Undergrad Hexagon's rotating in a larger hexagon

  • thorpie
  • · Replies 1 ·
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1

Undergrad Virtual images as an analogy for imaginary numbers

  • DaveC426913
  • · Replies 29 ·
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29

Cube Root Challenge: Prove Inequality

  • anemone
  • · Replies 5 ·
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5

Graduate Looking for a multivariate function with certain properties

  • Asteropaeus
  • · Replies 3 ·
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3

Inequality Challenge: Prove Real $a,b,c,x,y,z$

  • anemone
  • · Replies 2 ·
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2

Can you prove the Floor Function Challenge?

  • anemone
  • · Replies 3 ·
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3

Graduate What does volume in zero dimensions mean?

  • Sheldon Cooper
  • · Replies 2 ·
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2

Graduate Envelope(s) of the Sinc function

  • greswd
  • · Replies 4 ·
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4

Challenge of Square Root Problem

  • anemone
  • · Replies 2 ·
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2

Undergrad How many ways a number can be written as components sum?

  • Adel Makram
  • · Replies 3 ·
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3

High School What are Mathematical Operations?

  • Drakkith
  • · Replies 23 ·
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23

Find all combinations of a,b,c

  • Albert1
  • · Replies 1 ·
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1

Graduate Archimedes' area of a sphere proof; proposition 2

  • Ebenshap
  • · Replies 2 ·
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2

Find the Smallest of A and B: $A-B=98$ with Multiple of 19 Digit-sum

  • Albert1
  • · Replies 1 ·
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1

Find x_1+x_3+x_5+--------+x_999

  • Albert1
  • · Replies 1 ·
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1

Prove it should have no solution

  • Albert1
  • · Replies 1 ·
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1

Prove 1000th Progression of an Algebraic Series is Less than 1/79

  • anemone
  • · Replies 2 ·
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2

Undergrad How to Factorize a Large Number for Permutations?

  • Nader AbdlGhani
  • · Replies 4 ·
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4

Find x and y of form a+b√2 satisfying 2x+y-√(3x²+3xy+y²)=2+√2

  • anemone
  • · Replies 2 ·
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2

I just want to know one divergent formula

  • justone
  • · Replies 2 ·
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2

Is 2015! greater than 1008^2015?

  • anemone
  • · Replies 2 ·
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2

Graduate How can we prove that integers can be defined as odd or even?

  • Alpharup
  • · Replies 8 ·
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8