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

How to Create 4-by-4 Magic Square w/Sum 34

  • soroban
  • · Replies 1 ·
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1

What is the sum of X and Y for real roots of two equations?

  • anemone
  • · Replies 9 ·
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9

High School Why do I get different answers when solving equations in different ways?

  • member 529879
  • · Replies 1 ·
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1

High School A Language Spin: The Paradox of Zero Multiplication and Social Perception

  • Krokodzilla
  • · Replies 8 ·
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8

Graduate Things vs Coordinates-of-Things

  • Stephen Tashi
  • · Replies 2 ·
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2

Undergrad Explanation of small angle approximation?

  • ah4p
  • · Replies 10 ·
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10

Find Real Roots of $\sqrt{x+3-4\sqrt{x-1}}+\sqrt{x+8-6\sqrt{x-1}}=1$

  • kaliprasad
  • · Replies 2 ·
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2

Graduate Can distinct integers with 8 subsets of 3 always form a magic square?

  • Greg Bernhardt
  • · Replies 8 ·
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8

How Far Does a Bookworm Travel Through a 3-Volume Set?

  • soroban
  • · Replies 2 ·
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2

High School Purpose of using 10^7 or any # raised

  • Niaboc67
  • · Replies 14 ·
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14

Undergrad How to find x when y=x² mod N

  • jostpuur
  • · Replies 2 ·
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2

Undergrad I need a better "method" for working out proofs and problems

  • dkotschessaa
  • · Replies 4 ·
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4

High School How Can You Solve the Algebraic Equation √((a+b) + 2 √ab) = √a + √b?

  • basty
  • · Replies 1 ·
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1

Undergrad Solving systems of equations with trig functions

  • cytochrome
  • · Replies 10 ·
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10

High School What is the easiest method for adding and subtracting rational numbers

  • jim1174
  • · Replies 5 ·
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5

Who do you consider the 3 greatest mathematicians ever?

  • PhysicsPrime
  • · Replies 20 ·
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20

Find the number of real numbers that satisfy the given equation

  • anemone
  • · Replies 7 ·
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7

High School A strange inconsistency with square roots

  • ELB27
  • · Replies 16 ·
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16

Undergrad Distance from chord to ellipse end given dimensions

  • zyxwv99
  • · Replies 2 ·
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2

High School My first mathematical discovery. What was yours?

  • epenguin
  • · Replies 17 ·
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17

Undergrad Any interesting application of mathematics?

  • StephvsEinst
  • · Replies 6 ·
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6
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1

Prove $m^2 \ge 4kx$ for Real Solutions of $x^3+mx+k=0$

  • anemone
  • · Replies 2 ·
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2

Solving the City Soccer Tournament Puzzle: Group A Results

  • mathgeek7365
  • · Replies 1 ·
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1

What is the area of triangle PQR divided into six smaller triangles?

  • anemone
  • · Replies 1 ·
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1

Who was the best father son math team?

  • johnqwertyful
  • · Replies 8 ·
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8

Card trick using spelling to locate a chosen card

  • soroban
  • · Replies 5 ·
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5

Can You Identify These Equations on My New Watch?

  • Chloe Soza
  • · Replies 5 ·
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5

Find all quadruples (r, s, t, u)

  • anemone
  • · Replies 3 ·
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3

Find Integer Pairs $x,y$ with Infinitely Many Solutions

  • anemone
  • · Replies 3 ·
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3

Undergrad General definition of a discriminant

  • MathewsMD
  • · Replies 1 ·
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1

Problem using this formula both ways

  • dsryan
  • · Replies 1 ·
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1

Request for Huge List of Mathematics Ebooks

  • Blake Law
  • · Replies 1 ·
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1

Inequality: Prove $a^4+b^4+c^4 \ge abc(a+b+c)$

  • kaliprasad
  • · Replies 2 ·
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2

Is $p^3+4$ Prime if Both $p$ and $p^2+8$ are Prime Numbers?

  • Albert1
  • · Replies 3 ·
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3

Absolute Value with two expressions.

  • stuart4512
  • · Replies 3 ·
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3

Average speed for remaining 150-mile trip after first hour at 60 mph

  • lpollard8985
  • · Replies 1 ·
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1

Compare A and B: which is smaller?

  • Albert1
  • · Replies 3 ·
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3

Undergrad Reducing a mathematical expression

  • ralden
  • · Replies 2 ·
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2

Graduate Minimum time window needed to capture frequencies

  • Mindscrape
  • · Replies 2 ·
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2

How many coulombs of charge in a 5 g nickel coin?

  • leprofece
  • · Replies 2 ·
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2

High School Any Good Books on History of Math?

  • bballwaterboy
  • · Replies 2 ·
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2

Undergrad Finding power figures from graph data

  • lownlazy
  • · Replies 7 ·
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7

High School Are There Only Three Ways to Solve Quadratic Equation?

  • bballwaterboy
  • · Replies 7 ·
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7

News Basel II: Numerical instabilities to stabilize banks?

  • DrDu
  • · Replies 1 ·
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1

High School Are Logarithms Useless? Why Need them Given Exponents?

  • bballwaterboy
  • · Replies 12 ·
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12

Can someone explain this? (Speed=Distance*Time)

  • dsryan
  • · Replies 9 ·
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9

High School How to Convert 180 Ton to kN/m?

  • Laurine
  • · Replies 6 ·
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6

Harmonic Numbers Identity Proof?

  • alyafey22
  • · Replies 3 ·
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3

Why is my teacher calling 2m+(50s)(0.5m/s) pure piffle?

  • thereidisanceman
  • · Replies 2 ·
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2

Graduate Squaring the Circle: A Practical Squaring Construction

  • Lasand
  • · Replies 5 ·
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5

High School Finding the remainder of an algebraic quotient

  • snoopies622
  • · Replies 4 ·
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4

High School Permutations and combinations - is square a rectangle?

  • AdityaDev
  • · Replies 1 ·
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1

Undergrad Smallest integer where left rotation gives 1.5 times the number

  • Greg Bernhardt
  • · Replies 9 ·
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9

Solution Set in interval notation for inequality

  • datafiend
  • · Replies 4 ·
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4

Graduate Even and Odd functions - Fourier Series

  • MMS
  • · Replies 10 ·
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10

Undergrad Computing 1 minus a very small number for gamma factor

  • BOAS
  • · Replies 3 ·
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3

High School What is the golden ratio?

  • TheBiologist
  • · Replies 3 ·
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3

Undergrad Why does Rcos(x+a) give the wrong graph when rewriting 2sin(x)-3cos(x)?

  • Deep_Thinker97
  • · Replies 1 ·
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1

MyMathLab grading error from 2012

  • ComplexVar89
  • · Replies 8 ·
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8

Graduate How to write the Lorentz factor formula in LaTeX

  • Force1
  • · Replies 6 ·
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6

Finding angle α between a line and horizontal

  • DanielBW
  • · Replies 1 ·
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1

Undergrad Computing Mass Distribution in Statics Problems

  • Enrico Miccolis
  • · Replies 1 ·
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1

Evaluating an Expression with $k^{101}=1$ and $k\ne1$

  • anemone
  • · Replies 5 ·
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5

Find the sum of the real roots

  • anemone
  • · Replies 3 ·
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3

Graduate LSQ Notation: Unusual Notation Explained by Herget 1948

  • solarblast
  • · Replies 3 ·
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3

High School How many separate pieces does a rational function graph have?

  • bballwaterboy
  • · Replies 12 ·
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12

Graduate Losing energy during Fast Fourier Transform

  • Gordon89
  • · Replies 2 ·
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2

Undergrad Construct a regular grid in a rectangular box in 3 dimensional space

  • DivergentSpectrum
  • · Replies 7 ·
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7

Sum of k-powers and divisibility

  • Bibubo
  • · Replies 8 ·
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8

Parameterisation of quadric surfaces of order 2

  • bugatti79
  • · Replies 2 ·
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2

Secondary Identity Confirmation

  • Dundee3
  • · Replies 4 ·
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4

Graduate Feynman's status as a mathematician

  • gamow99
  • · Replies 19 ·
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19

Possible Miscalculation on Identity-Completion

  • Dundee3
  • · Replies 9 ·
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9

Finding function given new input

  • zolton5971
  • · Replies 7 ·
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7

Translation of Sentence Into An Equation

  • zolton5971
  • · Replies 5 ·
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5

Finding the LCD of two expressions

  • zolton5971
  • · Replies 3 ·
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3

Finding the LCM of two expressions

  • zolton5971
  • · Replies 2 ·
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2

Find Formula for nth Term in Tuff Sequence

  • Wilmer
  • · Replies 4 ·
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4

No. of real solution of exponential equation

  • juantheron
  • · Replies 5 ·
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5

Using Angle Difference to Get Exact Value

  • zolton5971
  • · Replies 20 ·
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20

Rational Expression word problem

  • Pikachu1
  • · Replies 6 ·
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6

Function Long division question

  • tmt1
  • · Replies 1 ·
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1

What Is the Remaining Balance After a Partial Discounted Payment?

  • ammanda
  • · Replies 1 ·
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1

How Do You Calculate the Discount Date Using the Dating Method?

  • ammanda
  • · Replies 1 ·
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1

Graduate Conjecture about the Prime Zeta Function

  • David Carroll
  • · Replies 1 ·
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1

Graduate V.I. Arnol'd's Mathematical Trivium

  • ZetaOfThree
  • · Replies 2 ·
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2

CTS and show the roots in this form

  • ai93
  • · Replies 4 ·
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4

Undergrad Probability of Having Two Boys - Riddle

  • micromass
  • · Replies 29 ·
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29

High School If a sum is 0, is the summand 0?

  • Dixanadu
  • · Replies 8 ·
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8

Solving for $\theta$: Which Value is a Counterexample?

  • eleventhxhour
  • · Replies 1 ·
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1

High School Is Absolute Value a Useless Concept?

  • bballwaterboy
  • · Replies 11 ·
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11

Undergrad Do we now express mm as the letter m with a superscript?

  • richard9678
  • · Replies 10 ·
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10

Tests of Divisibility- Simple tricks

  • burgess
  • · Replies 11 ·
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11

Why does raising a number to the power of 0 always result in 1?

  • OMGMathPLS
  • · Replies 5 ·
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5

Finding k in binomial expansion with constant term 16128

  • pusekatja
  • · Replies 1 ·
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1

Computing The Arbitrary-Precision Nth Root Of Positive (X) In PHP

  • Jay1
  • · Replies 1 ·
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1

Solve for a and b in these simultaneous equations

  • anemone
  • · Replies 2 ·
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2

High School Digital Root: A Strangely Interesting Operation

  • willr12
  • · Replies 2 ·
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2

Graduate These words should never be uttered by mathematicians

  • Hercuflea
  • · Replies 10 ·
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10