General Math Forum

High School How Can We Revive Enthusiasm in a High School Math Club?

Undergrad Proof max{f(x),g(x)}=1/2[(f + g) + |f - g|]

Undergrad How Many Buses Departed While Jill Waited for Jack?

Graduate Solving Problem: Prove 3^{2n+2} - 8n -9 Divisible by 64

Undergrad What is the relationship between two lines and their coordinates?

High School Circle geometry- bisector rules vs. perpendicular rules

Undergrad Finding First Term in Geometric Progression with Given Terms?

Undergrad Solve Polynomial Equation: 27X4+4KX-K=0 (K=0.9715) - Rao

High School Hyperbola with xy term and cathedral arch ellipse

High School Minuend Definition: How Did They Choose the Example Values?

Undergrad How far does each spider move before meeting in the middle?

High School Fraction with Radical - need to simplify (easy)

High School What comes next in this binary sequence?

High School 3 7 14 23 36 49 66 83 What number comes next?

High School How far does the fly travel between two cyclists meeting?

Undergrad What comes next in the binary sequence 101110111110111101100011001110111?

High School What Color is the Bear's Snowball Adventure?

Undergrad How to Solve Fractional Equations with Squared Variables?

High School Solving Polynomial: How to Expand Square Root

Undergrad Domain and range of f(x) = √(1 - log₃x)

Undergrad Can You Convert a Cartesian Equation to Parametric Form?

Undergrad There are 5 pirates numbered 1 through 5

Undergrad Calculating a Rotated Vector in 2D with FPS Camera

High School Proving Diagonal Bisection of Rhombus

Undergrad Prove CD/AB=DE/AE when A=D in Diagram

High School Walking Up Stairs: Climb 34 Steps in 20 Steps?

Undergrad Sol'n: A^2 - B^2 + 1: Find Value

Undergrad A term for a function from X to X?

Graduate Can diagonal vectors prove that orthogonal diagonals create a square rectangle?

High School The Product of Rational Numbers

Graduate How Do I Solve a Complex Coordinate Geometry Problem with Parabolas?

High School Converting the repeating decimal 1.262626... to a fraction

Undergrad I have to derive my own equation, I

High School Keeping only one digit after the dot.

Undergrad Can Triangle Side Lengths be Determined from Angles Alone?

High School How can the binomial theorem be proven?

Undergrad All Solutions to Equation with Integer Variables

High School Can someone point me in the right direction

Graduate Why is pythagoras theorem what it is?

Undergrad 100 animals 100 dollars? easy? I thought so.

Undergrad Finding the Fake Coin in 3 Weightings

Undergrad Construction of number system

High School What is the equation for the cross section of a parabolic TV antenna dish?

High School Is 0.999... Truly Equal to 1?

High School Freind of mine showed me this 3= 4?

High School Why is the Product of a Negative and Positive Number Negative?

Undergrad Find a positive integer 'm' such that m/2 is a perfect square and m/3 is a perfect cube

Graduate Is my new method for solving equations using iteration correct and effective?

High School Are zeros considered significant figures in scientific notation?

High School Prove PA^2 = 7QA^2 for point on equilateral triangle

Graduate Fourier Series Problem - Representing an Even Function

High School Solve Binomial Series: Quickly Answer Before Spring Break!

• Poll

Undergrad Are Complex Numbers Truly Magical?

Undergrad Is There a Proof for Congruent Segments on Any Transversal with Parallel Lines?

High School What do I need to know to study calculus?

Graduate Bourbakist approach to writing textbooks

Undergrad What Are the Solutions to sin^n(x) - cos^n(x) = 0?

Graduate Proof by Induction: Proving fm+n=(fm * fn+1) + (fm-1 * fn) for m,n>=1

Undergrad Where Can Mr. Fubini Walk and Return to His Starting Point?

High School Solving the Riddle of the Three-Story Building

Undergrad Proving a^2(1 + b^4) + b^2(1 + a^4) ≤ (1 + a^4)(1 + b^4)

Graduate Three-way duel with different hit probabilities

High School Why is the square root of x^9 not equal to x^4.5?

Graduate Factoring 2^128+16+1 with larger prime factors

Undergrad Find point A perpendicular to B, then prove medians of a triangle are concurrent

Undergrad Prove at least 100 pairs exist in a factory with 600 shoes

Undergrad Can sqrt(2) + sqrt(5) be proven irrational?

Graduate Proofs in sequences and series

Undergrad Can you connect 3 houses to utilities without crossing lines?

High School Geometry book for self-study with no high school background

High School Jobs that use sine and cosine regularly

Undergrad How to Convert Categorical Statements to Standard Form?

Undergrad Solving the Tower of Hanoi with 4 Pegs

Undergrad Putnam Math: Know What You Need

High School Factoring x^2 + 5 + 6/(x^2)

Graduate Solving 12 Inequalities w/ Neural Networks

High School Solve 1/0: What Number Times 0 Equals 1?

• Poll

High School BuffettIs 1 divided by 0 undefined or infinity?

Undergrad Is Pi the Most Precise Number in Existence?

Undergrad Graph Vout/Vin vs Log of Frequency: Units?

Graduate How many 3D cubes can fit inside a hypercube in R^4?

Undergrad The limitations of a simple model for

High School What Math Games Can Be Played with Just Pencil and Paper?

High School What does 'fold' mean in terms of increasing by 10?

Undergrad Maths problem involving Coordimate Geometry

Undergrad Prove a triangle is equilateral if sin(A/2)sin(B/2)sin(C/2) = 1/8

High School How can one effectively study for the AIME?

High School Deriving Formulae for Cone, Pyramid and Sphere

Undergrad Proving that a < (a+b)/2 < b for a < b

Undergrad A math book on introducing proofs(?)

High School How many bytes are in 256 terabytes?