General Math Forum

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 Challenge 23: Fractional exponents

Graduate Applications of Grothendieck's work

Graduate Why will this function always be an integer?

Find the smallest possible degree of a polynomial

Comparing $7$ and $\sqrt{2}+\sqrt{5}+\sqrt{11}$: Which is Bigger?

Undergrad Solution for two unknowns with two equations

Undergrad Mathematical discoveries caused by misprints?

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

Find Real Root: $x^5-10x^3+20x-12=0$

High School What does det mean in physics and math?

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

Unravel the Mystery: 5 Different Rooms, 5 Different Dimensions

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

Solving for AB & AC: Find the Solution

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 Intersection Points of Bisectors & Medians in Right Triangle

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

Understanding Arithmetic Sequences: Tips and Strategies

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

Discover the Number of Permutations for 'Examination' | Problem: Permutations

Is $\frac{\ln{|x|}}{x}=\ln{|x^{-x}|}$? Explained by y $\ln{x}=\ln{x^y}$ Rule

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 Unbreakable Code: Moby Dick Method

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 A question about the Cook-Levin Theorem

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 w/ 0.068 Ohms & 2.8mm Diameter: ~11.56 ft

High School Volume of Prism: Length & Width (y^3-y, y-1)

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?

• Poll

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?

Find log_3 (a2+a3+a4+a5+a6+a7)

Proving Identity 46: $\cos^{6}(A)+\sin^{6}(A)=1-3\sin^{2}(A)\cos^{2}(A)$