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
High School Effective learning methods advice
  • · Replies 7 ·
Replies
7
Views
2K
Prove 1+1 = 2 in Fewer Pages & Win US$5 at Evo & I
  • · Replies 56 ·
2
Replies
56
Views
8K
MHB How to Define a Piecewise Function Without Absolute Value Bars?
  • · Replies 7 ·
Replies
7
Views
2K
MHB Proving the primality of a quadratic over the natural numbers
  • · Replies 8 ·
Replies
8
Views
2K
MHB Completion of the proof of the Cosine Rule
  • · Replies 1 ·
Replies
1
Views
2K
MHB Determine the approximate values of sinθ and cosθ from the diagram below
  • · Replies 2 ·
Replies
2
Views
3K
Mapping the Concepts of Mathematics: A Comprehensive Guide
  • · Replies 2 ·
Replies
2
Views
2K
High School Time Taken for Moving 200m with Constant Speed of 10m/s
  • · Replies 12 ·
Replies
12
Views
19K
MHB Solve Algebraic Equations 0≤x<2π | Exact Values
  • · Replies 18 ·
Replies
18
Views
6K
MHB What is the pattern behind the repeating decimal in this interesting fraction?
  • · Replies 4 ·
Replies
4
Views
3K
High School What Mathematical Techniques Can Solve This Equation?
  • · Replies 3 ·
Replies
3
Views
1K
MHB Proving: 2003 Is a Product of Natural Numbers
  • · Replies 2 ·
Replies
2
Views
2K
High School How to Calculate the Value of Pi?
  • · Replies 1 ·
Replies
1
Views
2K
Odds of Last 4 Stanley Cup Winners in Conf Finals | NHL
  • · Replies 8 ·
Replies
8
Views
2K
MHB How Do You Prove a Logarithmic Identity Involving Powers of x?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Using fourier transform to find moving average
  • · Replies 5 ·
Replies
5
Views
6K
MHB Proving Non-Equality of Cubes of Natural Numbers
  • · Replies 31 ·
2
Replies
31
Views
8K
High School What is Discrete Math (in layman's terms)?
  • · Replies 2 ·
Replies
2
Views
3K
MHB Is Your Trigonometry Strong Enough to Solve This Challenge?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad How to notate a variable that is being held constant
  • · Replies 9 ·
Replies
9
Views
5K
MHB What is the value of (b^2/2a)+(a^2/2b) when a^2=3a+5, b^2=3b+5, and a≠b?
  • · Replies 1 ·
Replies
1
Views
1K
MHB Roots of p ( z ) in IR [ z ] (Lava's question at Yahoo Answers)
  • · Replies 1 ·
Replies
1
Views
2K
MHB Find the values of a, b, c and k.
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Fourier Series/ transform demonstration
  • · Replies 1 ·
Replies
1
Views
2K
MHB Solving Piecewise Functions with U(x) - U(x-1): Explanation and Graph
  • · Replies 12 ·
Replies
12
Views
3K
MHB Answerer's question at Yahoo Answers regarding a trigonometric equation
  • · Replies 1 ·
Replies
1
Views
2K
High School Trig Self-Study Books: Looking for Suggestions!
  • · Replies 2 ·
Replies
2
Views
2K
MHB Solving the Parabolic Tunnel Problem by Friday
  • · Replies 2 ·
Replies
2
Views
2K
High School Reducing fractions and lower math?
  • · Replies 3 ·
Replies
3
Views
2K
What's the URL for the fantastic group theory wiki?
  • · Replies 2 ·
Replies
2
Views
7K
MHB Calculate the sum of fractions
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad How do you solve eq. that have both exponents and polynomials
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Possible function y=f(x) if data points are given.
  • · Replies 5 ·
Replies
5
Views
2K
High School Lost Brick: How Many Remain on the Plane?
  • · Replies 22 ·
Replies
22
Views
3K
High School Geometry & Algebra: Proving Triangle-Square
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Help Understanding Trig Identity
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Rewrite of function into closed-form
  • · Replies 6 ·
Replies
6
Views
2K
High School How I separate 1/(2+1) in 2 fractions?
  • · Replies 3 ·
Replies
3
Views
1K
MHB Inscribed and circumscribed quadrilateral
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Finding the times when one cycle occurs for FM wave
  • · Replies 1 ·
Replies
1
Views
1K
MHB What Are the Negative Integer Solutions for \( y = \frac{10x}{100-x} \)?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Find Max Sum Given Integers a,b,c,d
  • · Replies 2 ·
Replies
2
Views
2K
High School Is there an easier way to solve rational equations?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Radical and its rational exponential form
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Question about rational expressions and their domains
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Formula & Conversion with a square root
  • · Replies 8 ·
Replies
8
Views
8K
Graduate Solution to Quartic Equation with small first coefficient
  • · Replies 5 ·
Replies
5
Views
2K
MHB Finding Max n Given $m,n \in N$ Satisfying $\sqrt {m+2007}+\sqrt {m-325}=n$
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Assist in rearrangment of equation that includes ln
  • · Replies 2 ·
Replies
2
Views
2K
MHB Solve Functions Question: Speed/Distance/Time & Composition
  • · Replies 1 ·
Replies
1
Views
3K
MHB Associativity Puzzle: Solving the Thread on Another Forum
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad What Are the Solutions for a + b + c = a * b * c with Positive Integers?
  • · Replies 2 ·
Replies
2
Views
2K
High School Solving for the Radius of a Circle in a Sector
  • · Replies 1 ·
Replies
1
Views
2K
MHB Polar equation of a conic (Carly's question at Yahoo Answers)
  • · Replies 1 ·
Replies
1
Views
1K
MHB Polar Graphs and a question about their poles
  • · Replies 4 ·
Replies
4
Views
6K
MHB How Does Removing the Amplitude Factor Improve Ball Bounce Modelling?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Help with Solving Diophantine Equations: Is Brute-Force the Only Option?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Solve 8 Coin Riddle with 2 Weighings
  • · Replies 3 ·
Replies
3
Views
3K
MHB Is 5 Less Than the Sum of Square, Cube, and Fourth Roots of 5?
  • · Replies 1 ·
Replies
1
Views
1K
MHB Arrange Numbers for Complete Squares Puzzle
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Can the 1296 permutation ever be extended?
  • · Replies 4 ·
Replies
4
Views
2K
High School How To Create An Arc Of A Circle As A Straight Line?
  • · Replies 5 ·
Replies
5
Views
2K
MHB Solving for Hyperbolic Tower Equation: F, G, and E
  • · Replies 1 ·
Replies
1
Views
2K
Left handedness in mathematics and physics
  • · Replies 9 ·
Replies
9
Views
9K
MHB Solve the Trigonometry Equation: sin^-1(x) + cos^-1(2x) = π/6
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Why do the digits 12, 45, and 78 form the numbers 3, 9, and 6 in this order?
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Proof of Pi's Transcendental Number
  • · Replies 1 ·
Replies
1
Views
1K
Your biggest mathematical embarassment
  • · Replies 21 ·
Replies
21
Views
3K
Undergrad What kind of higher math do I need?
  • · Replies 5 ·
Replies
5
Views
2K
MHB No. of numbers relatively prime to a number
  • · Replies 12 ·
Replies
12
Views
5K
MHB Giving a value for k so fg(x)=k has no solution?
  • · Replies 21 ·
Replies
21
Views
4K
Graduate Can Time Be Isolated in a Validated Physics Equation?
  • · Replies 6 ·
Replies
6
Views
3K
High School Real mechanism behind addition, subtraction, multiplication, division
  • · Replies 1 ·
Replies
1
Views
2K
MHB Julia's question at Yahoo Answers regarding a linear recurrence
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Rules of Logarithms: Explained and Demystified
  • · Replies 2 ·
Replies
2
Views
2K
MHB Cost per Pound of Coffee Beans
  • · Replies 1 ·
Replies
1
Views
3K
High School Learning and understanding Maths
  • · Replies 12 ·
Replies
12
Views
2K
High School If both sides of an equation are undefined does that mean its true?
  • · Replies 4 ·
Replies
4
Views
4K
Most Commonly Mispronounced Mathematicians
  • · Replies 57 ·
2
Replies
57
Views
14K
Undergrad Signed up for calculus - too advanced for me
  • · Replies 10 ·
Replies
10
Views
2K
MHB Binomial theorem (Milind Charakborty's question at Yahoo Answers)
  • · Replies 1 ·
Replies
1
Views
2K
MHB What is the Value of f(2009) in the Given Recursive Sequence?
  • · Replies 2 ·
Replies
2
Views
1K
MHB Polo's question at Yahoo Answers regarding making a perfect square trinomial
  • · Replies 2 ·
Replies
2
Views
2K
Mathematicians and physicists, do you get intimidated by equations?
  • · Replies 16 ·
Replies
16
Views
3K
High School Discovering the Name and Meaning of a Classic Geometry Diagram [Broken]
  • · Replies 8 ·
Replies
8
Views
1K
Graduate Any one interesed in tasking on a formula for the volume of a sphere.
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Help We have forgotten how to write math stuff
  • · Replies 66 ·
3
Replies
66
Views
8K
MHB How Do You Calculate Profit from Selling Oranges by the Box?
  • · Replies 3 ·
Replies
3
Views
3K
High School Logarithms and what they are for.
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Moviegoers' Club: Largest Number of Common Favorite Movies
  • · Replies 10 ·
Replies
10
Views
3K
MHB Breaking news about twin prime conjecture.
  • · Replies 8 ·
Replies
8
Views
3K
MHB I need to review modulus function
  • · Replies 1 ·
Replies
1
Views
2K
MHB Cardano's method of solving cubics
  • · Replies 3 ·
Replies
3
Views
2K
MHB Serina's questions at Yahoo Answers regarding sigma notation
  • · Replies 1 ·
Replies
1
Views
2K
MHB Glad to hear that the answer is correct! You are welcome, happy to help.
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Mathematics of producer surplus wrong?
  • · Replies 1 ·
Replies
1
Views
6K
Graduate Why are some coefficients negative when expanding a function in Legendre?
  • · Replies 1 ·
Replies
1
Views
1K
MHB How Do You Master Plotting and Sketching Sine Functions?
  • · Replies 2 ·
Replies
2
Views
2K
High School What Is The Root of 5? Irrational
  • · Replies 6 ·
Replies
6
Views
2K
MHB Understanding Squaring the Bottom of an Equation
  • · Replies 4 ·
Replies
4
Views
2K