General Math Forum

Post thread
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.

Math Proof Training and Practice

A gap in resources that should help students visualise mathematics

Math Guides, Tutorials and Articles

MHB Deriving the first and second order Newton-Cotes formulas

Math Problem of the Week

Undergrad Sum of an Alternating Series
MHB Evaluating a variable expression 2
  • · Replies 6 ·
Replies
6
Views
2K
MHB How Do You Simplify (x^2-2x+1)/(x-1) to x-1?
  • · Replies 3 ·
Replies
3
Views
2K
MHB How does log2 (x+1)+3 equal 8(x+1)?
  • · Replies 1 ·
Replies
1
Views
2K
High School Why is the product of zero defined as one?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Linear Programming Problem using the Simplex Method
  • · Replies 13 ·
Replies
13
Views
6K
Undergrad Solve Infinite Primes with Quadratic Polynomials
  • · Replies 5 ·
Replies
5
Views
2K
MHB Flight path angle concept question
  • · Replies 4 ·
Replies
4
Views
2K
High School Log base 2 is the same thing as square root?
  • · Replies 5 ·
Replies
5
Views
41K
MHB John's question at Yahoo Answers (parametric equations of a line).
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Is the Dirac Delta Function of x^2 Equivalent to Delta of x?
  • · Replies 8 ·
Replies
8
Views
18K
MHB Inverse Functions & Newton's Method: Debmnzl's Question | Yahoo! Answers
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Changing Numbers To Prescribed Values Under Special Limitations
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Examples of closed loop functions
  • · Replies 3 ·
Replies
3
Views
2K
High School Is there a list for solving algebraic equations?
  • · Replies 13 ·
Replies
13
Views
2K
MHB Is There a Mathematical Basis for an Infinite Number of Twin Primes?
  • · Replies 7 ·
Replies
7
Views
4K
Undergrad Why must exponents be dimensionless?
  • · Replies 8 ·
Replies
8
Views
14K
If the greatest mathematicians / physicists where alive today
  • · Replies 20 ·
Replies
20
Views
6K
MHB Sologuitar's question at Yahoo Answers (perpencicular distance)
  • · Replies 3 ·
Replies
3
Views
2K
MHB Brie's question from Facebook (finding equation of perpendicular line)
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Calculate & Draw Bezier Curve: Red & Blue Handles
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Why Does Traverse-Time Depend on n Being Odd or Even in Polar Coordinates?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Geometry Problem: Find Shaded Area Given Triangle & Inner Circle
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Very interesting problem that puzzles me
  • · Replies 6 ·
Replies
6
Views
2K
High School Question regarding Cosine Function
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Understanding the 'ERR: Nonreal Ans' Error with Psi and Phi
  • · Replies 2 ·
Replies
2
Views
3K
MHB Can You Prove This Inequality Involving Real Numbers?
  • · Replies 5 ·
Replies
5
Views
2K
High School Need a complete list of functions and thier inverses
  • · Replies 8 ·
Replies
8
Views
2K
MHB Center of mass of a two particle system
  • · Replies 1 ·
Replies
1
Views
4K
MHB Find Velocity of Recoiling Railcar with Conservation of Momentum
  • · Replies 2 ·
Replies
2
Views
6K
MHB Find the real roots of an equation.
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Why does polynomial long division work?
  • · Replies 3 ·
Replies
3
Views
4K
MHB Edgar's Question from Facebook: Convex Polygon
  • · Replies 1 ·
Replies
1
Views
3K
  • Poll Poll
High School Has anyone else developed a hate for cosine?
  • · Replies 37 ·
2
Replies
37
Views
5K
MHB Please prove the following inequality
  • · Replies 3 ·
Replies
3
Views
2K
High School Where Did I Go Wrong in Simplifying this Algebraic Expression?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Prove 7 > (2^0.5 + 5^0.5 + 11^0.5)
  • · Replies 6 ·
Replies
6
Views
2K
MHB What is the proof for this polynomial inequality problem?
  • · Replies 8 ·
Replies
8
Views
8K
MHB Internal angle sum of triangle
  • · Replies 1 ·
Replies
1
Views
2K
MHB Area of FGHI: How to Calculate
  • · Replies 1 ·
Replies
1
Views
2K
MHB Solve Exponential Function: x1/2 + x-1/2 | Help & Explanation
  • · Replies 5 ·
Replies
5
Views
2K
MHB 101fobster's question at Yahoo Answers regarding finding a parabolic function
  • · Replies 2 ·
Replies
2
Views
2K
High School What is the meaning of the y-axis on a sine wave graph?
  • · Replies 4 ·
Replies
4
Views
6K
High School Converting a figure into hours
  • · Replies 5 ·
Replies
5
Views
2K
MHB Inequality Problem: $(a_1+1)(a_2+1)...(a_n+1)\geq2^n$
  • · Replies 4 ·
Replies
4
Views
3K
High School How to prove by mathematical induction?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Jellybean Riddle about differing mass
  • · Replies 20 ·
Replies
20
Views
9K
MHB Finding the Min of $\dfrac{1}{x}+\dfrac{1}{y}$ Given $x,y>0$ and $9x+4y=2005$
  • · Replies 6 ·
Replies
6
Views
2K
High School Can Mnemonics Help You Master Math Equations?
  • · Replies 3 ·
Replies
3
Views
2K
High School Simple algebra problem, what am I doing wrong?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad I captured an ancient Fibonacci Monster
  • · Replies 15 ·
Replies
15
Views
3K
MHB Why Does the Same y Value Satisfy Both Equations in Simultaneous Equations?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Rationalizing a denominator involving the sum of 3 cube roots
  • · Replies 6 ·
Replies
6
Views
6K
MHB Big Square composed of Small Squares ?
  • · Replies 3 ·
Replies
3
Views
2K
High School How to Calculate 3^2048: Step-by-Step Guide
  • · Replies 7 ·
Replies
7
Views
2K
High School Problem with a logarithmic rule
  • · Replies 4 ·
Replies
4
Views
2K
MHB Mangoqueen54's question at Yahoo Answers involving a trigonometric identity
  • · Replies 2 ·
Replies
2
Views
2K
MHB Find Acceleration: Car Stops from 100 m/s in 410 m Distance
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Getting the components of a sum of square waves
  • · Replies 2 ·
Replies
2
Views
2K
MHB What is the sum of α + β in these given equations?
  • · Replies 10 ·
Replies
10
Views
4K
MHB What is the relationship between the incenter and orthocenter of a triangle?
  • · Replies 3 ·
Replies
3
Views
1K
MHB What Values of \( n \) Satisfy the Equation \( (n^3 + 2) \mod (2n + 1) = 0 \)?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad How many possible Grainger part numbers?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Function riding on another function
  • · Replies 2 ·
Replies
2
Views
2K
MHB Gravitational acceleration
  • · Replies 21 ·
Replies
21
Views
5K
High School Am I correct or is Wolfram correct?
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad A formula for sinusoidal graphs of this form?
  • · Replies 7 ·
Replies
7
Views
3K
High School Solving Inequalities: Tips & Tricks for Beginners
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Is there any equivalent for Ln(1+ax)?
  • · Replies 2 ·
Replies
2
Views
3K
MHB What Are the Relationships Between Triangles in Mathematics?
  • · Replies 8 ·
Replies
8
Views
4K
MHB What are the last two digits of $2^{2n}(2^{2n+1}-1)$ in decimal notation?
  • · Replies 2 ·
Replies
2
Views
1K
High School Terning a text based problem into a number based problem
  • · Replies 2 ·
Replies
2
Views
2K
High School How do you distinguish between an identity and an equation?
  • · Replies 30 ·
2
Replies
30
Views
7K
Graduate Information Theory and Mathematics
  • · Replies 5 ·
Replies
5
Views
2K
High School Proportionality and Translations in Graphs
  • · Replies 2 ·
Replies
2
Views
2K
MHB Angular Velocity for Constant Separation Distance
  • · Replies 5 ·
Replies
5
Views
6K
High School What is the difference between functions and operations?
  • · Replies 12 ·
Replies
12
Views
7K
MHB Have you tried using the double angle formula for cosine?
  • · Replies 3 ·
Replies
3
Views
3K
High School Why do we use plus/minus signs in front of radicals?
  • · Replies 5 ·
Replies
5
Views
7K
MHB Abigail's question at Yahoo Answers regarding binomial expansion
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Calculus Wars: Newton vs Leibnitz
  • · Replies 39 ·
2
Replies
39
Views
7K
High School Solving Logarithmic Equations: Analytical Method
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Next great mathematical invention
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad Taking a slice of a two dimensional array
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Calculating Earth's Circumference Using Eratosthenes Method
  • · Replies 2 ·
Replies
2
Views
3K
High School Trigonometry study on the side
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad How to Perform a Two-Sample Kuiper Test in R?
  • · Replies 2 ·
Replies
2
Views
3K
MHB What's your favourite result in mathematics?
  • · Replies 28 ·
Replies
28
Views
10K
MHB Proving Solution of Triangles with Tan Function
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Transforming a Rubber Band into a Trefoil Knot
  • · Replies 3 ·
Replies
3
Views
2K
Graduate LS Solution vs. Pre-Averaging: Which is More Effective for Noise Reduction?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Max number of roots of radical equation
  • · Replies 7 ·
Replies
7
Views
3K
MHB What are the solutions for t=1 in the given log equation?
  • · Replies 12 ·
Replies
12
Views
4K
MHB Understanding Newton's 2nd Law for a Ball Thrown Up an Inclined Plane
  • · Replies 5 ·
Replies
5
Views
14K
MHB Ella's question from Facebook (solving for a variable)
  • · Replies 1 ·
Replies
1
Views
2K
High School What are 100 Different Ways to Represent the Number 4?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad How can I calculate a segment of a sphere?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Having a very hard time in my PRECALC CLASS
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Polar Coordinates functional notation.
  • · Replies 4 ·
Replies
4
Views
3K
Welcome to Tenshou: Maths, Botany, Photography & More
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Is Pi Truly Infinite and Nonrepetitive?
  • · Replies 13 ·
Replies
13
Views
4K