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 Uniqueness of Cubic Spline Interpolation: How Can We Prove It?
  • · Replies 11 ·
Replies
11
Views
2K
MHB -gre.qu.10 quantity on 2 means
  • · Replies 2 ·
Replies
2
Views
1K
High School Super silly question about a polynomial identity
  • · Replies 8 ·
Replies
8
Views
1K
MHB How to Cook the Perfect Steak"Cook Perfect Steak: Step-by-Step Guide
  • · Replies 2 ·
Replies
2
Views
1K
High School Is 0^0 indefinite in Von Neuman Entropy?
  • · Replies 5 ·
Replies
5
Views
1K
High School Understanding Absolute Value and the Symbol ||: What Does it Mean?
  • · Replies 12 ·
Replies
12
Views
2K
MHB What are the values of n and k in n+8=2^k when n!+8 = 2^k?
  • · Replies 8 ·
Replies
8
Views
2K
MHB Min Value of $a^2+b^2$ in Quadratic Equation
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Solving congruences and diophantine equations in number theory
  • · Replies 3 ·
Replies
3
Views
1K
MHB Prove Triangle Inequality: $\sqrt{2}\sin A-2\sin B+\sin C=0$
  • · Replies 2 ·
Replies
2
Views
2K
MHB Help? Algebra 2 Math - Solve X,Y,Z
  • · Replies 3 ·
Replies
3
Views
1K
MHB Prove $\sqrt{a}+\sqrt{b}+\sqrt{c}+\sqrt{d}\le 10$ w/ $a,b,c,d>0$
  • · Replies 5 ·
Replies
5
Views
2K
MHB What are some questions about thermodynamics and their potential answers?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Can Exponent Values Be Determined with One Equation and Two Variables?
  • · Replies 4 ·
Replies
4
Views
1K
MHB Prove Centroid Goes Through It
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Making, testing and proving conjectures
  • · Replies 9 ·
Replies
9
Views
2K
MHB -gre.ge.2 distance by similiar triangles
  • · Replies 2 ·
Replies
2
Views
1K
MHB Centripetal acceleration of viking ship in the amusement park.
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Partition function in number theory and statistical mechanics
  • · Replies 1 ·
Replies
1
Views
1K
MHB Prove Divisibility: $(x-y)^2+(y-z)^2+(z-x)^2=xyz$ yields $x^3+y^3+z^3$
  • · Replies 1 ·
Replies
1
Views
2K
MHB Question about centripetal acceleration.
  • · Replies 3 ·
Replies
3
Views
2K
MHB Solve System of 2 Variables: $x^5+y^5=33,\,x+y=3$
  • · Replies 3 ·
Replies
3
Views
1K
MHB How to solve following optimization problem?
  • · Replies 2 ·
Replies
2
Views
1K
MHB Lattice energy, hydration energy, solution energy
  • · Replies 1 ·
Replies
1
Views
1K
MHB How can the perpendicular diagonals of a triangle help prove HCD?
  • · Replies 10 ·
Replies
10
Views
2K
MHB Prove Similar Triangles: $\sqrt{aa_1}+\sqrt{bb_1}+\sqrt{cc_1}$
  • · Replies 1 ·
Replies
1
Views
1K
MHB Polynomial with integer coefficients
  • · Replies 1 ·
Replies
1
Views
2K
MHB A Guide to Finding the Perfect Vacation Spot
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Finding the Velocity of an object due to an imparted force
  • · Replies 15 ·
Replies
15
Views
3K
MHB Prove Triangle Inequality: $\frac{a}{\sqrt[3]{4b^3+4c^3}}+...<2$
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Plotting polar equations and scale invariance
  • · Replies 7 ·
Replies
7
Views
2K
MHB What is the Trigonometric Inequality for $0<x<\dfrac{\pi}{2}$?
  • · Replies 1 ·
Replies
1
Views
1K
High School Is there a formula to get x in Excel without using solver: 0.5^x+0.2^x+0.25^x=1
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Simplest self-contained numeral system for complex numbers?
  • · Replies 8 ·
Replies
8
Views
2K
High School The Importance of Geometry in one's Mathematical Foundation
  • · Replies 10 ·
Replies
10
Views
2K
MHB Rational Inequalities: Solve & Understand | Math
  • · Replies 4 ·
Replies
4
Views
1K
MHB Prove Inequality: $\sqrt{ab}+\sqrt{cd}\le \sqrt{(a+d)(b+c)}$
  • · Replies 1 ·
Replies
1
Views
1K
MHB Master Calculus Questions with Expert Tips | Boost Your Grades
  • · Replies 1 ·
Replies
1
Views
2K
MHB Positive Integers: Evaluate $a+b+c$
  • · Replies 1 ·
Replies
1
Views
1K
MHB Can You Divide the Functions $P(t)$ and $N(t)$ to Simplify?
  • · Replies 1 ·
Replies
1
Views
1K
MHB Is the Given Answer for the Classical Mechanics Problem on Earth Correct?
  • · Replies 3 ·
Replies
3
Views
1K
MHB Congruence of ACB & CED: Similarity Chapter
  • · Replies 1 ·
Replies
1
Views
1K
MHB Prove Simultaneous Equations: $a+b+c+d \ne 0$
  • · Replies 2 ·
Replies
2
Views
1K
High School Tesseract Dimensions: Inner Cube vs Outer Cube
  • · Replies 3 ·
Replies
3
Views
1K
MHB Get Expert Help: How to Find Answers Quickly and Easily
  • · Replies 1 ·
Replies
1
Views
825
MHB Direct solution for two unknowns in two equations
  • · Replies 2 ·
Replies
2
Views
1K
MHB Finding $a$ and $b$ for $f(x)=|\lg (x+1)|$
  • · Replies 3 ·
Replies
3
Views
1K
Largest Number Game - Start at 1!
  • · Replies 43 ·
2
Replies
43
Views
6K
MHB How to compute the energy needed to compress the water isothermally?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What are all the positive integers that satisfy this equation?
  • · Replies 1 ·
Replies
1
Views
1K
MHB Is $p\equiv 3\pmod{4}$ a condition for $\pi$ to be an even permutation?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Intersection of a 4D line and a 3D polyhedron in 4D
  • · Replies 3 ·
Replies
3
Views
2K
MHB Maths in Temperature and ideal gas Thermometer
  • · Replies 2 ·
Replies
2
Views
1K
MHB Solve a Quadratic Equation with Vertex Form
  • · Replies 6 ·
Replies
6
Views
2K
MHB Is tan(x)^2 proper notation for the trig function tangent squared?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Dstermine the equation of function
  • · Replies 2 ·
Replies
2
Views
1K
MHB Coulomb's Constant in electron energy formula.
  • · Replies 1 ·
Replies
1
Views
1K
MHB -gre.ge.11 x,y of fourth corner of diagonal
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Can We Discover a Number Set More General Than Reals with Similar Properties?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Isn't it terrifying that AI can become smarter than any Mathematician?
  • · Replies 40 ·
2
Replies
40
Views
6K
MHB Answer a Chemistry Question: Rock Salt & Ice Cream
  • · Replies 6 ·
Replies
6
Views
2K
MHB Math Problem: 10000-(2x300+4x700)÷2
  • · Replies 1 ·
Replies
1
Views
1K
High School Verifying trig identities.... what about when tan is undefined?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Why was the substitution x = y - b/3a used in Cardano's Cubic Formula?
  • · Replies 10 ·
Replies
10
Views
3K
MHB Uncovering Patterns in Questions
  • · Replies 1 ·
Replies
1
Views
1K
High School LEAN The New Way to Prove Theorems
  • · Replies 4 ·
Replies
4
Views
1K
MHB Can you prove this inequality challenge?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Connection of zeta to primes: less Euler than error or L-functions?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Determine the equation of the parabola
  • · Replies 1 ·
Replies
1
Views
1K
High School Commutative & Associative property of negative numbers
  • · Replies 4 ·
Replies
4
Views
3K
High School Why does the radius of a unit circle need to be 1?
  • · Replies 36 ·
2
Replies
36
Views
6K
MHB What Are the Different Forms of Quadratic Equations?
  • · Replies 1 ·
Replies
1
Views
971
MHB Solve Equation: $\sqrt{1+\sqrt{1-x^2}}$
  • · Replies 3 ·
Replies
3
Views
1K
MHB What are the solutions to the equation 2^x + 2/2^x = 3?
  • · Replies 3 ·
Replies
3
Views
1K
MHB What is the result of 6 divided by 2(1+2)?
  • · Replies 2 ·
Replies
2
Views
1K
MHB Double summation: inner index = function of outer index
  • · Replies 2 ·
Replies
2
Views
1K
MHB How Can You Calculate the Area of Shaded Regions in Complex Geometric Figures?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Finding the Coordinates of Point D
  • · Replies 1 ·
Replies
1
Views
1K
MHB Can You Solve This Challenging Inequality Problem?
  • · Replies 1 ·
Replies
1
Views
2K
How can pie help you remember pi?
  • · Replies 30 ·
2
Replies
30
Views
3K
MHB Creating Triangles: How Many Can You Make?
  • · Replies 3 ·
Replies
3
Views
1K
High School Domain of a composite function
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad How to calculate successive resultant values of a continued fraction
  • · Replies 12 ·
Replies
12
Views
2K
MHB Solve Real Number $x$ That Satisfies Equation
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Don't understand this function, s(cosξ + j sinξ) in my textbook
  • · Replies 4 ·
Replies
4
Views
897
Undergrad How Do You Reverse a 2.5D Projection Function in Programming?
  • · Replies 3 ·
Replies
3
Views
1K
High School Weird stuff on infinite numerical sequences in a Soviet book
  • · Replies 5 ·
Replies
5
Views
1K
High School Why do we use squared quantities in equations and formulae?
  • · Replies 33 ·
2
Replies
33
Views
4K
High School Properties of Absolute Value with Two Abs Values
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad Exact Expression for Sine of 1 Degree
  • · Replies 34 ·
2
Replies
34
Views
5K
MHB Permutation Problem SWITZERLAND
  • · Replies 3 ·
Replies
3
Views
2K
MHB Solving $x^3+y^3=7$ and $x^2+y^2+x+y+xy=4$ System of Equations
  • · Replies 1 ·
Replies
1
Views
1K
MHB How Do I Solve a Logarithmic Equation with Different Bases and Variables?
  • · Replies 4 ·
Replies
4
Views
2K
MHB How Does Boyle's Law Explain the Pressure-Volume Relationship of CO2?
  • · Replies 3 ·
Replies
3
Views
4K
High School What is the notation for denoting constants in a function?
  • · Replies 2 ·
Replies
2
Views
1K
MHB Computation of bond angles and other angles in tetrahedral
  • · Replies 2 ·
Replies
2
Views
2K
MHB Can $3^{2008}+4^{2009}$ be written as a product of two positive integers?
  • · Replies 1 ·
Replies
1
Views
1K
MHB Molecular orbital theory question about energy level diagrams
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Can New Theorems Predict Incomplete 5x5 Magic Square Solutions?
  • · Replies 68 ·
3
Replies
68
Views
12K
MHB Sum of Numbers on Cube Faces to Equal 2004
  • · Replies 1 ·
Replies
1
Views
2K