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 Proving Inequality: \(\frac{1}{n^2}\) Sum < \(\frac{7}{4}\)
  • · Replies 2 ·
Replies
2
Views
1K
High School How can I calculate this hyperbola's equation?
  • · Replies 2 ·
Replies
2
Views
1K
MHB Distance between points in a triangle
  • · Replies 1 ·
Replies
1
Views
3K
MHB Polygonal Hamster Wheel with 24901 sides.
  • · Replies 5 ·
Replies
5
Views
2K
MHB Ratio problem: The ratio of Liquid X to Liquid Y in a mixture is 3 to 7
  • · Replies 2 ·
Replies
2
Views
2K
MHB Speed of Perigee: Find Satellite Velocity at 750 km
  • · Replies 7 ·
Replies
7
Views
3K
High School Is the object of an experiment a variable?
  • · Replies 21 ·
Replies
21
Views
3K
MHB How Does Air Resistance Affect Power in Rotational Motion?
  • · Replies 1 ·
Replies
1
Views
2K
MHB What Determines the Angular Momentum of a Rolling Boulder?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Help manipulating a Physics equation
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad Is There Really a Shortage of Math Majors?
  • · Replies 5 ·
Replies
5
Views
2K
MHB Formula to extend a line in 3d (opposite of midpoint formula)
  • · Replies 2 ·
Replies
2
Views
2K
MHB LCM & Meatloaf: Solving Tom's Problem
  • · Replies 4 ·
Replies
4
Views
2K
MHB Is the Converse of the Given Statement True for Any Positive Integer n?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Solving Integer Equations for Integers Not Hit By Any Expression
  • · Replies 5 ·
Replies
5
Views
2K
MHB What is the Relationship Between Roots and Coefficients in a Quadratic Equation?
  • · Replies 2 ·
Replies
2
Views
2K
High School Is log8 (x/2) same as log8 x/2?
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad How do you solve systems of equations in complex physics problems?
  • · Replies 6 ·
Replies
6
Views
2K
High School Calculating the area of a circle or square using decimals
  • · Replies 9 ·
Replies
9
Views
3K
MHB Find accelerations- Angular and linear
  • · Replies 10 ·
Replies
10
Views
6K
MHB Unique Area of Triangle Formula
  • · Replies 2 ·
Replies
2
Views
1K
MHB Show Interval On Number Line....1
  • · Replies 3 ·
Replies
3
Views
1K
MHB Expression involving roots of quadratic equation
  • · Replies 1 ·
Replies
1
Views
2K
MHB Question 29- How to conclude the following proof.
  • · Replies 2 ·
Replies
2
Views
2K
MHB Why Are There No Real Solutions to the Equation \( |x^2 + 4x| = -12 \)?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Show Interval On Number Line....2
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Can single variable equations always be solved using basic math principles?
  • · Replies 3 ·
Replies
3
Views
1K
MHB Graph Rational Function By Hand
  • · Replies 5 ·
Replies
5
Views
2K
MHB Can Two Points in a Cube Be Less Than √(3)/2 Apart?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Absolute Value Definition....3
  • · Replies 1 ·
Replies
1
Views
1K
MHB Absolute Value Definition....2
  • · Replies 1 ·
Replies
1
Views
1K
MHB Absolute Value Definition....1
  • · Replies 1 ·
Replies
1
Views
2K
MHB Find Inverse of Rational Function
  • · Replies 7 ·
Replies
7
Views
3K
MHB What Determines the Range of a Rational Function Like f(x) = 2/(x - 3)?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Recurrence Formula for 3,5,13,27,55,...
  • · Replies 2 ·
Replies
2
Views
1K
MHB Inequality of Four Variables: Prove Σab(a^2+b^2+c^2)≤2
  • · Replies 1 ·
Replies
1
Views
1K
MHB John & Peter's Chessboard Game: Minimal Moves for Victory
  • · Replies 1 ·
Replies
1
Views
2K
MHB Triangular Relations: Proving (AD)^2+(DE)^2+(AE)^2= \frac{2}{3}(BC)^2
  • · Replies 1 ·
Replies
1
Views
1K
MHB Unlocking An Irrational Location: Solving a Geocaching Puzzle
  • · Replies 7 ·
Replies
7
Views
11K
MHB Finding the Equation of a Circle Given the Diameter Coordinates
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Mathematical Simulation of Patent. Very General
  • · Replies 2 ·
Replies
2
Views
1K
MHB How to Determine the Equation of a Circle from Given Diameter Coordinates?
  • · Replies 8 ·
Replies
8
Views
2K
MHB What is the Center and Radius of a Circle?
  • · Replies 9 ·
Replies
9
Views
2K
MHB What is the midpoint of these given points?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Prove a quartic equation ax^4+bx^3+cx^2+dx+e=0 has at least one real solution
  • · Replies 2 ·
Replies
2
Views
2K
MHB Is there a formula for finding the perimeter of a triangle with known vertices?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Trigonometric Sum Prove: N=3,5,7...
  • · Replies 2 ·
Replies
2
Views
2K
High School Why Does This Algebraic Identity Work in Relativistic Doppler Calculations?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate What is the future of mathematics in understanding the universe?
  • · Replies 6 ·
Replies
6
Views
2K
MHB What caused the wrong answer for determining the center and radius of Circle 2?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Is the distance between AB and BC the same using the given coordinates?
  • · Replies 14 ·
Replies
14
Views
3K
MHB I made 2 equations but can they become 1
  • · Replies 4 ·
Replies
4
Views
3K
MHB What is the Polynomial P(x) Given a Specific Quotient and Remainder?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad How to Determine the Size of a K-Map?
  • · Replies 1 ·
Replies
1
Views
1K
MHB Dimensions of a rectangular prism
  • · Replies 2 ·
Replies
2
Views
2K
MHB Find Car B's Initial Velocity: A Physics Puzzle
  • · Replies 2 ·
Replies
2
Views
3K
MHB Trigonometric equality sin15°sin24°sin57°=sin39°sin27°sin18°
  • · Replies 1 ·
Replies
1
Views
2K
MHB Solving Acute Triangle Angles Given $A,B,C$ & Equations
  • · Replies 1 ·
Replies
1
Views
2K
MHB How Should Bert Correctly Finish His Mental Subtraction Problem?
  • · Replies 5 ·
Replies
5
Views
2K
MHB What is the Common Core method for solving 2x + 3x?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Finding the Center of Mass of a Plywood Sheet: A Scientific Approach
  • · Replies 5 ·
Replies
5
Views
8K
MHB Therefore, AB + BC = AC, thus proving that the given equation is true.
  • · Replies 3 ·
Replies
3
Views
6K
MHB What Are the Consecutive Even Integers in This Algebra Problem?
  • · Replies 7 ·
Replies
7
Views
2K
MHB Is this triangle an isosceles triangle?
  • · Replies 3 ·
Replies
3
Views
2K
MHB How Many Tables Are Available at a Restaurant?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Math used in Physics versus other sciences
  • · Replies 7 ·
Replies
7
Views
2K
High School Explanation of what a parameter is
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad What does this math symbol mean? R^4 |X SL(2,C)
  • · Replies 8 ·
Replies
8
Views
2K
MHB What Is the Value of $\tan^2 a + 2\tan^2 b$ Given the Trigonometric Condition?
  • · Replies 5 ·
Replies
5
Views
2K
MHB If f(3x) = f(3) + f(x) , then prove that : f(1) = f(3) =f(9) = f(27) = f(81) = 0
  • · Replies 6 ·
Replies
6
Views
2K
I Passed My Master's Qualifier - Dave K
  • · Replies 42 ·
2
Replies
42
Views
5K
MHB H(x) = 3x2 - kx nd h(4) = h(-2) , then find vaue of k
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad What is the reason for sudden change in pattern in The Borwein Integral?
  • · Replies 2 ·
Replies
2
Views
3K
MHB If g(x) =(kx-p)/(2) , g(7) = 8 , g(5) = 5 then find the value of x and g(x)
  • · Replies 2 ·
Replies
2
Views
1K
MHB Find the domain of the function .
  • · Replies 1 ·
Replies
1
Views
1K
MHB Calculating Mine Proposal: Silver, Copper, and Gangue Production and Profits
  • · Replies 1 ·
Replies
1
Views
2K
MHB Stuck on a trigonometric identity proof....
  • · Replies 4 ·
Replies
4
Views
3K
High School What is a Linear Relationship?
  • · Replies 21 ·
Replies
21
Views
4K
MHB What is the Weighted Average Cost?
  • · Replies 1 ·
Replies
1
Views
2K
MHB Statics for rod attached to string
  • · Replies 2 ·
Replies
2
Views
2K
MHB Finding the final distance for the compressing in a spring system
  • · Replies 2 ·
Replies
2
Views
2K
MHB Question about roots/synthetic division
  • · Replies 2 ·
Replies
2
Views
2K
MHB What is the Net Profit and Cash Flow of Johns Inc. for the Year?
  • · Replies 2 ·
Replies
2
Views
2K
MHB How to Simplify Fractions with Brackets
  • · Replies 1 ·
Replies
1
Views
2K
MHB Redistributing Percentages: How to Anchor 0 to 10% and Maintain a Total of 100%
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What are the definitions of Jacobi Elliptic Functions?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Is There an Easier Method to Prove $n^2>n$ for Negative Integers?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Using the idea of conservation of energy
  • · Replies 1 ·
Replies
1
Views
1K
High School The largest number, does it end in 0 or 9?
  • · Replies 15 ·
Replies
15
Views
3K
MHB Optimizing Loan Interest Rates: Solving for Loan Length
  • · Replies 2 ·
Replies
2
Views
2K
MHB Cryptography: RSA Message decryption
  • · Replies 4 ·
Replies
4
Views
2K
MHB What is Peter's current age in this age problem?
  • · Replies 6 ·
Replies
6
Views
7K
Insights Further Sums Found Through Fourier Series - Comments
  • · Replies 5 ·
Replies
5
Views
2K
MHB Guidelines for posting/answering a challenging problem or puzzle
  • · Replies 2 ·
Replies
2
Views
8K
Undergrad Reverse a String in C - Solve Segmentation Fault
  • · Replies 6 ·
Replies
6
Views
2K
MHB Evaluate ∠APR if ∠APQ=3∠APR and ∠PAQ=45°
  • · Replies 3 ·
Replies
3
Views
4K
High School Would Mathematics be Considered a discovery or an Invention?
  • · Replies 41 ·
2
Replies
41
Views
6K
High School Understanding the Differences in Arctan Values: A Scientific Perspective
  • · Replies 8 ·
Replies
8
Views
2K
MHB Prove ∠A≤60° if (1/sinB+1/sinC)(−sinA+sinB+sinC)=2
  • · Replies 2 ·
Replies
2
Views
2K
MHB Arithmetic Sequence Confusion // a{n-1} and a{n+1}
  • · Replies 1 ·
Replies
1
Views
2K