General Math Forum

Undergrad Multiplication by different units

High School Why Isn't x/0 = x, Instead of Undefined?

Domain and range of y = √(x² + y²)

Find Integer $k$: x^2-x+k Divides x^13+x+90

Find x (Radians): Solve sec(2π/3 + x) = 2

High School Simplifying (x²)³(2x³)³/(4x)²

High School Linear (1st power), Quadratic (2nd power) what's Next?

Undergrad What is tan θ in this diagram?

Perfect Numbers: Proving Even Exponents

Undergrad Which is greater: 101/10 or 31/3?

Graduate Applications of Grothendieck's work

Graduate Why will this function always be an integer?

Find the smallest possible degree of a polynomial

Which is larger: 7 or √2+√5+√11?

Undergrad Solution for two unknowns with two equations

Undergrad Mathematical discoveries caused by misprints?

Solving for $\dfrac {a^{12}+7}{a^4}$ with $a^2-a-1=0$

Finding a real root of x^5 - 10x^3 + 20x - 12 = 0

High School What does det mean in physics and math?

What Are the Focus Areas in the Course Algorithms and Complexity?

Logic puzzle: five men, five rooms with different widths and lengths

Prove a triangle is equilateral

Calculating Bond Value - 3.5 Yr Holding, 8% Coupon

How do you find the composition of functions in the given pairs?

High School Graph Remainders: See 1-200 Divided by 1-9

Graduate Determining A Finite Value of Infinity

High School Calculate Circle Radius/Diameter from Surface Area

What is the solution to this hard system of equations?

High School Can You Define "Term" and "Expression" in Math?

Solving a Challenging Number Sequence Problem

Graduate Why is the term space commonly used in geometry but not in algebra?

Adding Trigonometric Functions

High School How to Construct a Decagon Using a Protractor and Compass

Graduate Trivial/pointless math puzzle I'm too stupid to solve

Find AB and AC given angles and BC unknown

Finding $\angle ACB$ in $\triangle ABC$

Finding Side Lengths of Tangram Shapes

Find X, a 4-digit perfect square

What is the area of a segment bounded by a chord and an arc in a circle?

How Much Heat Is Needed to Melt Ice and Warm It to 30°C?

Distance between incenter and centroid in a right triangle with legs 9 and 12 cm

Finding the other trig functions when cos(θ) = x/4

Finding Intercepts: Simple Steps to Refresh Your Memory

Undergrad What does : mean on ProofWiki's page about normal subgroups?

Finding the Difference between Two Intersecting Equations

What is the Unknown Value of N in a Table?

Table Functions Explained: Help for Understanding

Finding terms in arithmetic progressions

Undergrad Giving a lecture on decimal fractions

Help with arithmetic sequence problems

1000 th Digit in a Given number N

Sums of arithmetic progressions

Can You Solve This Challenging Polynomial Equation?

Max $m$ for $(\frac{1}{11^m}\prod_{i=1000}^{2014}i)\in N$

News Alexander Grothendieck is no longer with us

High School Can a Right Triangle be Solved Without Any Given Values?

Finding the log by using the proportional table

High School Finding Values for a Frustum Net to Calculating x, y, t, and H

Prove Integer Solution for $x_1^3+x_2^3+x_3^3+x_4^3+x_5^3=k$

Finding Triples of Positive Integers in Power Equations

How many 4-letter permutations can be made from 'examination'?

Is ln|x|/x equal to ln|x^(-x)|?

High School Shorter algebra book to review before college trigonometry

How to find composition of f ° g and g ° f ?

Negative Exponents: Solve the Problem and Figure it Out

Solving word problems using a system of equations (i'm guessing simultaneous).

Undergrad Are there algorithms for untangling knots?

Undergrad Is the Moby Dick book cipher unbreakable?

High School What Is the Difference Between Symbolic and Literal Equations?

Undergrad Where do I start in math for physics comprehension?

Prove :x²+y²=1992 ,no solution

Graduate Can NP-complete problems reduce to each other?

Systems of Non-Linear equations

Undergrad Correcting Speed Graphs on Maps Using Excel

Undergrad How Can You Symbolically Solve for x in Mathematical Functions?

High School What is the Negative of a Polar Coordinate?

At which p-adic fields does the equation have no rational solution?

Heights and distances problems

Wire length from resistance and diameter using direct and inverse variation

High School Swimming pool dimensions from volume and height

Graduate What is the shortest route to marriage on the round island?

For which primes, does the equation have a rational solution?

Undergrad Symbol Meaning: Capital "V" with Crossbar

High School What exactly is the purpose of square-rooting

Graduate Does there always exist primes in between square of two consecutive prime.

Right Angle Triangle, at a loss

Height of a mountain geometry problem

Graduate Solve Optimal Factory Construct Problem for Max Goods in 10-50 Hours

How can you factor out x from the original term?

How do I find the coordinates of the centre and vertices in a square and circle?

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Undergrad What is considered a "mathematician"?

Undergrad Solving the Bearing Problem - Is There a General Solution?

Divisibility problem (number theory, I believe)

What is the Square Root Property in Mathematics?