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.
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High School Why does 0.333... equal 1/3 and not 0.4?
- rajeshmarndi
- · Replies 37 ·
High School Solving x^2+2^x=100
- doc102
- · Replies 6 ·
Find the sum of all possible values
- anemone
- · Replies 2 ·
Show $n\equiv 1 \pmod 9$ for Even Perfect Numbers $n>6$
- alexmahone
- · Replies 3 ·
High School How to Solve Exponents that also has a variable with it
- enggM
- · Replies 3 ·
High School Strange Pattern with Logarithms
- ConstantineO
- · Replies 2 ·
What Are the Different Ways People Think About Math?
- Mgkov18
- · Replies 9 ·
Graduate Riemann on Deductive vs Creative Reasoning
- paalfis
- · Replies 2 ·
High School Is the Pythagorean Theorem Applied to Determine the Length of AB?
- Ismael Nunez
- · Replies 13 ·
Undergrad Usefulness of Euler line in triangles?
- symbolipoint
- · Replies 1 ·
High School Is the square root of 4 a constant?
- bigplanet401
- · Replies 10 ·
High School Questions on Trigonometric equation solving
- iwantcalculus
- · Replies 14 ·
Finding a Quadratic Function from a Vertex
- cmkluza
- · Replies 2 ·
Minimum of $a$ for $a^2+2b^2+c^2+ab-bc-ac=1$
- anemone
- · Replies 1 ·
What are the Values of k that Satisfy the Given Equation?
- anemone
- · Replies 3 ·
Undergrad Understanding superposition for a layer model
- VictorVictor5
- · Replies 1 ·
High School Formula to find volume of a rectangular solid
- beamthegreat
- · Replies 20 ·
High School What does it mean to take positive rational numbers to whole
- jim1174
- · Replies 2 ·
How Should We Express the Amount of Money Sandy Received?
- DawnC
- · Replies 4 ·
Divide Fractions: Is Subtraction of Exponents Correct?
- DawnC
- · Replies 2 ·
Kari is 13 years younger than twice Jackie's age, sum is 66
- DawnC
- · Replies 7 ·
Arithmetic Progression: Finding the First Term and Common Difference
- Crystalong876
- · Replies 2 ·
Money Question [Need Shortcut Way]
- zidan3311
- · Replies 1 ·
High School Solving Cos4x + Sin4x = 1: Can I Sqroot Both Terms?
- uzman1243
- · Replies 6 ·
High School Is annual suicide rate 1 in 7,000 or 1 in 60 people?
- Jonyx
- · Replies 4 ·
Undergrad How did John Napier invent his sliderule?
- markkrebs
- · Replies 8 ·
Graduate Diophantine equation and squares
- secondprime
- · Replies 1 ·
Undergrad Why are there (p+1)/2 quadratic residues mod an odd prime p?
- moriheru
- · Replies 3 ·
Undergrad Can a 6th degree equation be solved by hand without a CAS?
- Mr Davis 97
- · Replies 3 ·
Undergrad Cross product of current direction and position vector
- davidpotter
- · Replies 2 ·
High School Domain and range of composite functions?
- CAH
- · Replies 4 ·
Determine equation of line described. put in slope intercept form if possible
- Snicklefritz
- · Replies 1 ·
Evaluating $a^2+b^2+c^2+d^2$ for Different Equations
- anemone
- · Replies 2 ·
Multiplying Radicals: Where Is My Mistake?
- Cuberoot1
- · Replies 1 ·
Prime number spiral visualization
- arydberg
- · Replies 3 ·
Simplify (√3 sec π/5 + tan 2π/5) tan 2π/15
- anemone
- · Replies 6 ·
Finding inverse of f(x) = (5x-3)/(2x-1)
- Snicklefritz
- · Replies 2 ·
Undergrad Simplifying compositions of trig and inverse trig functions
- Astudious
- · Replies 3 ·
Undergrad Unit vector of a line in straight line equation
- ahmed markhoos
- · Replies 2 ·
Reviewing Phasors: When to Add +/- 180 in $\tan^{-1}$?
- Dethrone
- · Replies 5 ·
Graduate What makes these initial functions so special?
- japplepie
- · Replies 4 ·
Calculating Amount Financed with Dealer Fee and Down Payment
- cici190
- · Replies 2 ·
Prove: $\sin P+\sin Q> \cos P+\cos Q +\cos R$ | Trig Challenge
- anemone
- · Replies 2 ·
Prove $40ac<1$ Given $a, b, c$ Real Positive Numbers
- anemone
- · Replies 8 ·
Undergrad Why is the squared meters negative?
- R_Ham
- · Replies 3 ·
Graduate What is the problem with the argument for the diagonal length of a square?
- Vinay080
- · Replies 6 ·
High School Understanding Lower Level Math
- starrynight108
- · Replies 1 ·
Finding last year's average tax refund given a 3.5% decrease
- DawnC
- · Replies 5 ·
Euler-pi discovery from AMS news
- Wilmer
- · Replies 2 ·
Head start for a tied race: John at 5 m/s, Joe at 3 m/s over 300 m
- leprofece
- · Replies 5 ·
Graduate Square of x , added to one is not equal to n
- secondprime
- · Replies 18 ·
Undergrad Minimal Triplet: Definition and Calculation
- LagrangeEuler
- · Replies 5 ·
High School Solving an irrational equation
- Mr Davis 97
- · Replies 2 ·
High School Why does surface area increase with folding, invagination, and roughness?
- gracy
- · Replies 11 ·
Undergrad Euler and the youth of mathematicians
- gamow99
- · Replies 1 ·
An intriguing system of equation
- anemone
- · Replies 2 ·
Graduate Most general order-preserving function
- Dragonfall
- · Replies 9 ·
High School Simple Pythagorean theorem proof using similar triangles
- Essence
- · Replies 10 ·
Undergrad Finding inverses in modular arithmetic
- PsychonautQQ
- · Replies 1 ·
Finding arc length and inscribed angles in circles
- jozerivers
- · Replies 1 ·
Undergrad Between -180 and 180 degrees (convert a larger angle)
- Philosophaie
- · Replies 3 ·
Graduate Can intersecting lines prove a plane exists?
- point
- · Replies 5 ·
Undergrad Where on Earth (75% of the time in the dark)
- rede96
- · Replies 4 ·
High School How old is i? (Imaginary number)
- Tyrion101
- · Replies 10 ·
Prove Inequality for $0<x<\dfrac{\pi}{2}$: Math Challenge
- anemone
- · Replies 2 ·
Recurrence relation for coordinates of chained right triangles
- nacho-man
- · Replies 4 ·
Colbert Interview with mathematician Edward Frenkel
- liometopum
- · Replies 2 ·
High School How can you measure 4 litres with two buckets and a tap?
- mia5
- · Replies 23 ·
Prove $|P(a)-P(b)|<\dfrac{1}{2}$ for Algebra Challenge Function $P$
- anemone
- · Replies 8 ·
High School Teacher told to set absolute value inequality to equal 0
- asadpasat
- · Replies 3 ·
Undergrad Expanding sum with binomial coefficients and powers of 2
- Ananya0107
- · Replies 3 ·
Find Point in R2: $a(-5,2),b(12,9)$
- Amer
- · Replies 2 ·
Undergrad Demonstrating terrain flatness in the Wright brothers' first flight photo
- simplex1
- · Replies 3 ·
Graduate Angle/Coordinate Calculation for two "Pulley" System
- Dustin11H3
- · Replies 1 ·
Undergrad X = p * y. Find x, y when both are as close to 1 as possible
- simplex1
- · Replies 8 ·
Undergrad How Many Lines Do I Need to Draw to Maximize the Internal Surface of a Cylinder?
- physior
- · Replies 29 ·
Undergrad How to solve x + 3^x < 4 analytically
- Karim Habashy
- · Replies 7 ·
Graduate Irrational numbers and Planck's constant
- DiracPool
- · Replies 4 ·
Printing one million digits of pi on a mile of paper
- PFuser1232
- · Replies 10 ·
What Time Do the Bus and Truck Meet?
- zidan3311
- · Replies 6 ·
How Does Angular Velocity Affect a Block on a Rotating Wedge?
- Ciaran
- · Replies 12 ·
Will You Celebrate the Ultimate Pi Moment Tomorrow?
- Greg Bernhardt
- · Replies 26 ·
Can the Inequality $x,y,z>1$ be Proven with a Hint of 48?
- Albert1
- · Replies 2 ·
What Time Does Bill Catch Up with Mike?
- zidan3311
- · Replies 17 ·
Calculating the Payout Ratio: How Investors Value Alibaba's IPO
- SK145
- · Replies 1 ·
Undergrad Is profit/loss% always wrt price
- rajeshmarndi
- · Replies 1 ·
Undergrad Do Complex Objects Have Equations?
- question99
- · Replies 4 ·
Undergrad How do I represent this sine function?
- eprparadox
- · Replies 7 ·
Undergrad How are Equations for Different Series Generated?
- AdityaDev
- · Replies 5 ·
Undergrad Do you translate mathematics or understand it natively?
- austinuni
- · Replies 5 ·
Find closed form expression for a given sum
- anemone
- · Replies 3 ·
How Do I Identify the Net of a Cube?
- susanto3311
- · Replies 2 ·
Graduate Finite solutions of Brocard’s problem
- secondprime
- · Replies 15 ·
Solve Trigonometric Sum: Find S Value
- MarkFL
- · Replies 3 ·
Undergrad How Many Steps Are Visible on the Escalator When It's Shut Down?
- Fraulein
- · Replies 13 ·
Prove Geometry Challenge: Cyclic Quadrilateral PQRS
- anemone
- · Replies 2 ·
High School How to tell if a triangle has two solutions?
- Tyrion101
- · Replies 5 ·
What does this sum symbol mean?
- shamieh
- · Replies 4 ·
Undergrad Inequality X^n<Y^n if x<y and n is odd
- Karim Habashy
- · Replies 3 ·
High School Point of contact of circle an tangent
- sachin patil
- · Replies 2 ·