General Math Forum

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.

Threads

Prove Sum and Difference Sine?

  • Farmtalk
  • · Replies 7 ·
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7
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Find the nth term of the sequence.

  • anemone
  • · Replies 3 ·
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3

Graduate Issue with Fourier Series of an even function.

  • darkfeffy
  • · Replies 2 ·
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2

Solve A Trigonometric Equation

  • anemone
  • · Replies 3 ·
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3

Unlock the Code - Solve the Challenge!

  • Farmtalk
  • · Replies 2 ·
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2

Jamie's question from Yahoo Answers regarding centroids

  • Chris L T521
  • · Replies 5 ·
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5
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9

Solve Simple Inequality: x < 0 or x > 2

  • Fernando Revilla
  • · Replies 3 ·
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3

How and what to teach on an elementary number theory course.

  • matqkks
  • · Replies 1 ·
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1

Solve Equation: (7x+1)^(1/3)+(-x^2+x+8)^(1/3)+(x^2-8x-1)^(1/3)=2

  • anemone
  • · Replies 6 ·
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6

Undergrad Difference of Quintics, Sextics, and Septics

  • Tenshou
  • · Replies 10 ·
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10

High School What Are Heuristics (in Math)?

  • SF49erfan
  • · Replies 3 ·
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3
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1

Undergrad Isolating variables from sine-function, I'm stuck

  • batnas
  • · Replies 1 ·
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1

Proving the Formula of Fibonacci Numbers

  • mathworker
  • · Replies 2 ·
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2

Graduate Is Feynman's Lecture on Algebra Still Relevant Today?

  • Hetware
  • · Replies 12 ·
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12

Can you simplify this surd expression without a calculator?

  • MarkFL
  • · Replies 5 ·
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5

Equation of page of unfolded paper with a crease

  • angellus
  • · Replies 3 ·
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3

Graduate Help in calculating the square of a number in sexagesimal notation?

  • moohah
  • · Replies 7 ·
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7

High School Is it carelessness or something else? (Having trouble reading certain

  • Tyrion101
  • · Replies 2 ·
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2

Prove Inequality IMO-2012: a2a3⋯an=1

  • mathworker
  • · Replies 2 ·
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2

Sq. FD + sq. DB = sq. BF Almagest Ch 10 Book I Ptolemy

  • moohah
  • · Replies 1 ·
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1

Undergrad Relation vs Function: Physical Phenomena Explained

  • thedy
  • · Replies 7 ·
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7

Mathematical map - diagram illustrating what you need to know to learn

  • ThereIam
  • · Replies 2 ·
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2

Undergrad Finding 10-Digit Numbers with Divisibility Rules

  • micromass
  • · Replies 8 ·
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8

Graduate Discovering Nature's Language: Mathematics

  • BrowncoatsRule
  • · Replies 8 ·
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8

Teaching the division algorithm to engage students

  • matqkks
  • · Replies 1 ·
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1

Calculating Real $(x,y,z)$ with System of Equations

  • juantheron
  • · Replies 1 ·
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1

VulcaBlack's Inhomogeneous Linear Recurrence Q&A

  • MarkFL
  • · Replies 2 ·
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2

High School What does ∏ mean and how can i use it?

  • Vacrin
  • · Replies 13 ·
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13

Greatest Common Divisor: Applications in Tiling and Number Theory

  • matqkks
  • · Replies 1 ·
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1

Graduate Constructibility of a Perfect Venn Diagram

  • CarsonAdams
  • · Replies 1 ·
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1

High School How best to teach the division algorithm?

  • matqkks
  • · Replies 6 ·
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6
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1

Graduate What is a D-domain and how is it used in AC machine systems?

  • bfdeleen
  • · Replies 2 ·
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2

A very strange statement from Wolfram Alpha....

  • chisigma
  • · Replies 3 ·
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3

The Smartest Triangles: Equilateral Triangles

  • anemone
  • · Replies 5 ·
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5

10 Photos That Definitively Prove Math Is Really Hard

  • anemone
  • · Replies 5 ·
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5

High School What is the hardest type of math and are there unsolved equations?

  • Swegner99
  • · Replies 10 ·
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10

What is the radius of the circle inscribing a hexagon?

  • anemone
  • · Replies 9 ·
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9

Yuri's questions at Yahoo Answers involving algebra

  • MarkFL
  • · Replies 1 ·
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1

Undergrad Reynolds Number and its Characteristic Length?

  • blizzard12345
  • · Replies 1 ·
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1

Graduate Question about the Planck spaces and observable universe, .

  • megahmad
  • · Replies 2 ·
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2

Undergrad How Many Five-Digit Numbers Have Ascending and Descending Patterns?

  • I_am_learning
  • · Replies 15 ·
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15

High School Why Do We Use fg(x) Instead of f(g(x))?

  • adjacent
  • · Replies 18 ·
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18

Why Did the Romans Neglect Mathematics for a Millennium?

  • oahz
  • · Replies 48 ·
2
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48

Proving Inequality in Mathematics: Vacation Edition

  • mathworker
  • · Replies 1 ·
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1

Undergrad How can one start to THINK IN NUMBERS?

  • cdux
  • · Replies 1 ·
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1

Undergrad Method to use all the numbers in a string to equal other number

  • ginyu
  • · Replies 1 ·
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1

Graduate Imaginary prime number divisor

  • thedragonbook
  • · Replies 3 ·
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3

Undergrad Is Mathematical Induction the Key to Understanding Finite and Infinite Concepts?

  • matqkks
  • · Replies 9 ·
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9

Undergrad Equation of the line for a second order decay

  • Miffymycat
  • · Replies 6 ·
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6

Solve Exponential Eqn: $f(x)=\dfrac {4^x}{4^{x+2}}$

  • Albert1
  • · Replies 8 ·
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8

Undergrad Find the least acceleration and least retardation?

  • Douna2nd
  • · Replies 8 ·
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8

Graduate Causality and its maths, is it too general to be useful ?

  • rogerharris
  • · Replies 7 ·
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7

Undergrad What is a Clique in Graph Theory?

  • Tenshou
  • · Replies 14 ·
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14

Trigonometry to Memorize and Trigonometry to Derive

  • Ackbach
  • · Replies 1 ·
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1

Undergrad Everything can be represented by ones and zero

  • Avichal
  • · Replies 20 ·
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20

Undergrad Understand Coupling Coefficient k Between Two Wire Coils

  • dnyberg2
  • · Replies 1 ·
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1

Symmetric Graphs: f(x)=3^x and g(x)=(1/3)^x Explained

  • Fernando Revilla
  • · Replies 1 ·
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1

Undergrad Looking for a simple generalization regarding absolute values

  • 1MileCrash
  • · Replies 4 ·
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4

Graduate Closed-Form for RD(f(n)): Finding k(n)

  • Big-Daddy
  • · Replies 2 ·
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2

High School When tan theta is -ve why did we assume that it's in the second quad?

  • Douna2nd
  • · Replies 3 ·
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3

Trying to resolve a trig identity

  • Dustinsfl
  • · Replies 1 ·
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1

Graduate Number infinitely close to one but not one

  • firefly431
  • · Replies 11 ·
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11

High School Proving a^2 - b^2 = (a+b)(a-b) with Factorization

  • scientifico
  • · Replies 4 ·
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4

Solve Q5 Part II Maths Exam: Normal Reaction Force on C

  • Needhelp2
  • · Replies 3 ·
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3

Graduate Can a larger base than three create a number greater than Graham's number?

  • Mentallic
  • · Replies 1 ·
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1

How Many Digits Does 2^1000 Have?

  • Farmtalk
  • · Replies 2 ·
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2

Basic Algebra Question: A Diophantine Problem

  • first21st
  • · Replies 8 ·
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8

Solve Worded Simultaneous Equations: Tips & Examples

  • mclarey
  • · Replies 1 ·
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1

Improving Interpretation of Percentages: Tips and Examples

  • Erik1
  • · Replies 8 ·
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8
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1

What is the remainder when a_{2013} is divided by 7?

  • anemone
  • · Replies 3 ·
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3

Calculating M and the Unit Digit of M^2003

  • anemone
  • · Replies 3 ·
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3

Algebra practice exam questions

  • MarkFL
  • · Replies 3 ·
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3

Undergrad Can two different functions have an infinite number of solutions?

  • Tim_B
  • · Replies 7 ·
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7

What is the first puzzle in MHB's puzzle contest?

  • alyafey22
  • · Replies 32 ·
2
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32

High School Word Problem Confusion: Am I Right or Nitpicky?

  • Tyrion101
  • · Replies 13 ·
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13

High School If you take the number 7 out of the real number line, then

  • student34
  • · Replies 8 ·
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8

Undergrad Elementary Number Theory Syllabus: Teaching Tips & Resources

  • matqkks
  • · Replies 1 ·
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1

Find the domain of the function.

  • mitchconnor
  • · Replies 1 ·
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1

Amazing Sequence: 444, 666, 999 - Rofl!

  • alyafey22
  • · Replies 3 ·
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3

What to include on a first elementary number theory course?

  • matqkks
  • · Replies 4 ·
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4

Applying Trigonometric Functions

  • soccerstar814
  • · Replies 1 ·
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1

Graduate Just Some Theorizing for Pi Enthusiasts

  • ohshiznit422
  • · Replies 8 ·
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8

Undergrad Why degrees are equal if polynomial are equal?

  • Avichal
  • · Replies 5 ·
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5
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5

Is Every Convex Combination of Elements in a Convex Set Also in the Set?

  • Fernando Revilla
  • · Replies 1 ·
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1

High School Succeeding from no background in math?

  • Tyrion101
  • · Replies 2 ·
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2

High School What makes an equation equivalent to another?

  • Atran
  • · Replies 4 ·
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4

High School Why (ax^2 + bx + c) = a(x-α)(x-β)?

  • Atran
  • · Replies 3 ·
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3

Prove Polynomial Roots: a(b) of x^6+x^4+x^3-x^2-1

  • anemone
  • · Replies 1 ·
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1

High School How do I describe dividing fractions using pies

  • mr magoo
  • · Replies 9 ·
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9

Undergrad Solve Hard Math Riddle: Commuter & Wife Puzzle

  • Physic lover
  • · Replies 2 ·
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2

How to Prove this Trigonometric Identity?

  • anemone
  • · Replies 2 ·
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2

Graduate Is it possible to transform infinite sums into infinite products?

  • japplepie
  • · Replies 16 ·
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16

Graduate Prove , if x is a rational number , x ≠ 0 then , tan(x) is not rational

  • Maths Lover
  • · Replies 2 ·
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2

Solve cos²(π/4(sin x+√2cos² x))-tan²(x+π/4tan² x)=1

  • anemone
  • · Replies 4 ·
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4