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

High School Does a median in a triangle create two congruent triangles?

  • decibel
  • · Replies 3 ·
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3

Troubleshooting: What's Wrong Here?

  • Anzas
  • · Replies 10 ·
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10

Undergrad Boy Outsmarts Terrible and Awful Sons!

  • .....
  • · Replies 7 ·
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7

Math Test Question: Guess the Answer

  • UrbanXrisis
  • · Replies 2 ·
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2

Undergrad How do I refute or prove this?

  • Monsu
  • · Replies 4 ·
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4

High School How do you solve for cos2x = 2 cosx sinx?

  • Maria
  • · Replies 32 ·
2
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32

Graduate Hiegher dimensional Mathematics.

  • aekanshchumber
  • · Replies 1 ·
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1

High School Solving Non-Linear Systems of Equations: A Simple Method

  • bob4000
  • · Replies 3 ·
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3
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15

Undergrad Composite Functions: Inverse of f o g?

  • Monsu
  • · Replies 3 ·
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3

Undergrad Absolute quadratic inequalities.

  • Kelvie
  • · Replies 4 ·
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4

High School Trig Proofs: Websites for Basic Identities

  • quasar987
  • · Replies 3 ·
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3

High School Finding Intersections: Subsitution Method Help

  • bob4000
  • · Replies 4 ·
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4

High School Can I Teach Myself Trig Just by Reading a Textbook?

  • Krazie
  • · Replies 24 ·
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24

High School Cracking Dr. Ray's Secret Code: Can You Figure it Out?

  • Casey
  • · Replies 37 ·
2
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37

High School The Secrets of Geometry: A Comprehensive Overview

  • chound
  • · Replies 10 ·
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10

High School Understanding Rotations on a Polar Grid | Geometry Explained

  • mactony
  • · Replies 2 ·
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2

High School When i have tan2x = 1 i get two angles

  • Maria
  • · Replies 2 ·
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2

Undergrad What math courses should I take next semester?

  • vsage
  • · Replies 4 ·
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4

Undergrad Are Proportional Sides Enough to Prove Equal Angles in Similar Triangles?

  • dekoi
  • · Replies 2 ·
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2

Undergrad Square of n factorial is greater than n to the power n

  • maverick280857
  • · Replies 14 ·
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14

Graduate Prove that: e^pi > pi^e, without using a calculator

  • Parth Dave
  • · Replies 1 ·
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1

High School Convert seconds to nanoseconds on a calculator?

  • Arsonade
  • · Replies 17 ·
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17

High School How can I use 4, 4, and 4 to result in the number 31?

  • turkldo
  • · Replies 13 ·
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13

Graduate How Did Viete Solve Roomen's Problem in 1595?

  • Ethereal
  • · Replies 3 ·
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3

High School Understanding the Concept of max{x,y} in Discreet Mathematics

  • bkc82
  • · Replies 7 ·
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7

Undergrad Need help solving equations in mechanics class?

  • chubsmalone
  • · Replies 5 ·
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5

Undergrad Elegant Proof of some summations

  • vsage
  • · Replies 9 ·
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9

High School Can You Crack This Word Substitution Code?

  • Arsonade
  • · Replies 9 ·
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9

High School Solving Quadrilaterals with Known Angles & 1 Side

  • Physics is Phun
  • · Replies 4 ·
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4

Are 70% of Statistics Made Up in Arguments?

  • KaneOris
  • · Replies 7 ·
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7

Undergrad Slighty off topic, but i'm in need of a decent Book

  • Spectre32
  • · Replies 15 ·
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15

Graduate A bit weird magnetism problem

  • The_Thinker
  • · Replies 1 ·
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1

High School How to Solve the Equation 1^x?

  • Tombow2558
  • · Replies 5 ·
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5

Undergrad 5^(n+1) - 1 = 4*5^n + 5^n -1 ?

  • bkc82
  • · Replies 3 ·
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3

Undergrad How Do I Solve a Logarithmic Equation with Parameters and Find the Value of x?

  • abra
  • · Replies 4 ·
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4

High School Proving (-1)(-1)=1: A Curious Solution

  • JasonRox
  • · Replies 16 ·
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16

High School Formal definition of what the symbol 0

  • abc
  • · Replies 9 ·
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9

High School What is the secret code for Dr. Kai's computer system?

  • Derivative86
  • · Replies 5 ·
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5

Have you ever solved a problem in your dreams?

  • hypnagogue
  • · Replies 20 ·
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20

Undergrad Constructing an Equation with X, Y, and Z for Desired Result

  • mani_narasim
  • · Replies 3 ·
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3

High School Circumscribed and inscribed circles of a regular hexagon?

  • josephcollins
  • · Replies 4 ·
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4

Undergrad What is the equation for solving for alpha?

  • physics_dude
  • · Replies 3 ·
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3

Undergrad Collatz series and noticed a pattern in the lengths

  • Alkatran
  • · Replies 4 ·
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4

High School Help with Relative Velocity Maths Vector Diagram

  • FateMaster
  • · Replies 7 ·
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7

Undergrad Something brought up in class.

  • JasonRox
  • · Replies 8 ·
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8

Undergrad Need help formulating an equation

  • czar13
  • · Replies 1 ·
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1

Undergrad Moment of inertia of a polygon

  • cigarette
  • · Replies 3 ·
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3

High School How to Slice a Donut into 13 Pieces with Only Three Cuts

  • terrabyte
  • · Replies 16 ·
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16

What is the purpose of this NPR feature?

  • MathematicalPhysicist
  • · Replies 4 ·
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4

Undergrad Is There a Formula for Fitting a Sum of Exponentials to Data Points?

  • Gonzolo
  • · Replies 2 ·
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2

Come on PFers, I need your shoe size

  • PRodQuanta
  • · Replies 82 ·
3
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82

Graduate Uncovering Unknown Functions: Solving for f(x) and g(x) in Complex Equations

  • Kerbox
  • · Replies 7 ·
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7

High School Trigonometry sin cos tan Question

  • 404
  • · Replies 4 ·
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4

Undergrad Speed of a 50.0 kg Box Pulled by 1.50 * 10^2 N Force

  • punjabi_monster
  • · Replies 4 ·
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4

High School What is the formula for calculating average power?

  • Dieter
  • · Replies 2 ·
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2

Undergrad Calculating the Coefficient of x^34 in (1+x^2+x^7+x^16)^1000

  • FlyingMonkey
  • · Replies 6 ·
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6

Graduate Fox, Sheep, Cabbage problem - revisited

  • BobG
  • · Replies 5 ·
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5

High School Need Help: Cartesian to Polar Coordinates

  • Dorita
  • · Replies 1 ·
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1

High School Five Rooms Puzzle: Is it Possible?

  • discomb
  • · Replies 2 ·
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2

High School Dimensional Analysis & Conversions: Metric Units Explained

  • chewbocka
  • · Replies 8 ·
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8

High School Can you take a look at this one

  • wmosley
  • · Replies 1 ·
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1

Undergrad Problems involving finding proofs?

  • Alkatran
  • · Replies 4 ·
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4

Undergrad Proving N Consecutive Integers Divisible by N

  • decibel
  • · Replies 13 ·
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13

Undergrad How Can 24 Numbers Be Compressed Into 6 or Fewer?

  • Hypercase
  • · Replies 5 ·
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5

High School Solve Ax+By=C Equation for Line through (2,-1) & (4,6)

  • Alkatran
  • · Replies 7 ·
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7

High School PLEASE HELP Unit conversion (Volume, Mass, Density)

  • Amil
  • · Replies 2 ·
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2

Graduate Weird pattern in exponentiation

  • StatusX
  • · Replies 3 ·
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3

Undergrad Prove that the square of an odd integer

  • Yodums
  • · Replies 15 ·
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15

Calculating 2+2: The Answer Revealed

  • gabe
  • · Replies 27 ·
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27

High School Can Anyone Use Scientific Notation?

  • poolwin2001
  • · Replies 2 ·
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2

Graduate Student solves ancient math problem

  • Monique
  • · Replies 30 ·
2
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30

Someone good at math triangles and circles?

  • Euphoriet
  • · Replies 11 ·
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11

Undergrad N for 6 is 6*5*4*3*2*1 but what is 6.1 ?

  • tony873004
  • · Replies 6 ·
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6

Undergrad Solving the System of Equations: x^2 + 5y = 30 & x^2 + (y-3)^2 = 9

  • Alkatran
  • · Replies 7 ·
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7

Undergrad What is the significance of the relationship between phi and pi?

  • Imparcticle
  • · Replies 3 ·
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3

High School String of N characters containing M(<N) words

  • Vance
  • · Replies 11 ·
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11

High School Adding/subtracting in polar coordinates?

  • coregis
  • · Replies 3 ·
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3

Undergrad Help with Combining Vectors: Find Resultant and Angle

  • Baby Einstein
  • · Replies 4 ·
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4

High School Sig Figs: Solve Mixed Equations and Get the Correct Answer

  • Baby Einstein
  • · Replies 11 ·
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11

High School What are the coordinates of point B?

  • xowe
  • · Replies 3 ·
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3

High School How to Solve for C and F in a Formula?

  • RanCor
  • · Replies 3 ·
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3

Graduate Attention all graduate math students

  • bfd
  • · Replies 5 ·
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5

Undergrad Finding the Largest Triangle in a Polygon: Solutions Needed!

  • damrai
  • · Replies 7 ·
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7

High School Distance Formula: Find JK Distance to Nearest Tenth

  • xowe
  • · Replies 3 ·
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3

Undergrad Trigonometry Obscurity: Solving Triangle ABC

  • xenogizmo
  • · Replies 4 ·
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4

Graduate A property of Chebyshev polynomials

  • T.Rex
  • · Replies 6 ·
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6

Graduate What is everybody taking this fall?

  • fourier jr
  • · Replies 21 ·
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21

Graduate Research Suggestions: Prime Number Distribution

  • Nebula
  • · Replies 1 ·
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1

Undergrad Proving AB is Not Equal to CD in Euclidean Geometry

  • Imparcticle
  • · Replies 18 ·
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18

Undergrad Equivalent equations and not equivalent answers?

  • mewmew
  • · Replies 8 ·
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8

N/M Got It to Being Self-Sufficient

  • nomi
  • · Replies 1 ·
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1

High School Elementary math that professors cant solve

  • killerinstinct
  • · Replies 43 ·
2
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43

Predict Questions on Teacher Tests

  • Karate Chop
  • · Replies 3 ·
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3

High School What are the ages of the host's daughters and his apartment number?

  • PRodQuanta
  • · Replies 3 ·
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3

High School Iq test if i have two tetrahedral pyramids

  • datatec
  • · Replies 9 ·
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9

High School SAT math: is this a valid question?

  • Zorodius
  • · Replies 10 ·
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10

Can the mind out think Reality?

  • Olias
  • · Replies 9 ·
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9

Undergrad Irrationality of Rational Exponents

  • agro
  • · Replies 14 ·
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14

Grading Techniques: Final Answer vs. Work Done

  • Alkatran
  • · Replies 17 ·
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17