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.
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Lengths of three segments of a triangle
- anemone
- · Replies 4 ·
Proving a trigonometric identity II
- egillesp
- · Replies 2 ·
Moment of Inertia of a plate with respect to one diagonal
- Fantini
- · Replies 6 ·
Undergrad Epic and pompous phrases used in mathematical proofs
- 1MileCrash
- · Replies 11 ·
Radial distribution of a 3d orbital
- Dethrone
- · Replies 3 ·
Making x the subject in two equations
- Ellie1
- · Replies 3 ·
Printable Flashcards for Studying
- Greg Bernhardt
- · Replies 2 ·
Undergrad Counting paths in an 81-square Quoridor-style maze
- mishima
- · Replies 5 ·
Solving \[x^{4}-4x^{3}+10=0\] with a "Binary Search
- Yankel
- · Replies 4 ·
Proving a trigonometric identity
- egillesp
- · Replies 7 ·
Solving Cubic Polynomial: Prove Two Distinct Roots
- anemone
- · Replies 2 ·
How to find domain of function in implicit form
- find_the_fun
- · Replies 6 ·
High School Is pi 3.14159265359 or 22/7?
- Mr.maniac
- · Replies 26 ·
Proving cos(8π/35) + cos(12π/35) + cos(18π/35) = (1/2)(cos(π/5) + √7·sin(π/5))
- maxkor
- · Replies 4 ·
Undergrad Engineering Student Seeks Good Math Book: Advice?
- GiuseppeR7
- · Replies 4 ·
Find $a+2b+3c$ Given $(x-1)^3$ is a Factor of $x^{10}+ax^2+bx+c$
- Albert1
- · Replies 3 ·
No Real Solutions to System of Equations
- anemone
- · Replies 3 ·
High School How do you know when to multiply denominators
- jim1174
- · Replies 3 ·
Proving $\sum_{k=0}^{n} \binom{n}{k}^2 =\dfrac{(2n)!}{(n!)^2}$
- Albert1
- · Replies 2 ·
Is (m²)/(m)² always an integer?
- anemone
- · Replies 6 ·
Prove that there is no integer a with P(a)=8.
- anemone
- · Replies 2 ·
Should money be borrowed to take advantage of a discount?
- jdrock12
- · Replies 6 ·
High School Why is there a 2 in this fraction problem?
- jim1174
- · Replies 7 ·
Ellipse with vertices (0,-3) and (0,3) and minor axis length 10
- JakeyTheIdiot
- · Replies 11 ·
Applying the rules for exponents
- MagicalGoose
- · Replies 13 ·
Solve 2 Equations: 8x-4=9x+6,-x=10
- aarce
- · Replies 4 ·
Solving 4(2x-1)=3(3x+2): Step 1-3
- aarce
- · Replies 2 ·
Can the Roots of a Cubic Equation be Bounded?
- anemone
- · Replies 4 ·
Converting between arcseconds and radians
- viawilli
- · Replies 2 ·
Time Series: What's Going On Here?
- DrClaude
- · Replies 3 ·
How to Solve for r and θ in a Circle's Minor Arc and Sector Area Problem?
- ai93
- · Replies 7 ·
Determine co-ordinates of points B?
- ai93
- · Replies 3 ·
Undergrad Can you reverse engineer a number?
- thetexan
- · Replies 9 ·
How Is Trigonometry Used to Calculate Flagpole Heights?
- ai93
- · Replies 3 ·
Undergrad Applications for number of paths?
- nomadreid
- · Replies 5 ·
Undergrad Can Numbers Only be Graphed Using the Z Axis and What are They Called?
- thetexan
- · Replies 1 ·
Graduate Where Can I Find Alexander Rosa's Paper on Valuations of Graph Vertices?
- Charles Stark
- · Replies 6 ·
Does C^n – B^n = A^n express A in terms of B and C?
- chuck klasky
- · Replies 3 ·
Graduate Convert this relation to a function
- CSteiner
- · Replies 2 ·
High School Understanding Relative Velocity: Explained in Simple Terms
- Aichuk
- · Replies 2 ·
How to Solve Formulas with Given Values of Variables
- username842
- · Replies 1 ·
Find the Value of n in a Unique Factorial Problem with (n+1)!/(n-1)! = 56
- ThomsonKevin
- · Replies 3 ·
Given 3 sides of a triangle, compute interior angles and area
- ai93
- · Replies 6 ·
Undergrad Can You Solve the False Coin Problem in 3 Weighs?
- WCOLtd
- · Replies 10 ·
Sinx and cosx in the second quadrant
- tmt1
- · Replies 1 ·
Represent the following inequalities on a single graph
- ai93
- · Replies 5 ·
A simple trigonometrical equation.
- vandana panchal
- · Replies 1 ·
Radiolab episode on numbers, Benford's law, and fraud detection
- collinsmark
- · Replies 1 ·
Determine the minimum value of an expression
- anemone
- · Replies 2 ·
Finding all solutions to sine rule when angle B has two possible values
- ai93
- · Replies 4 ·
Why Is Cosine Used to Calculate Angle Y in a Right Triangle?
- ai93
- · Replies 2 ·
Switch from rings and modules to analysis
- Math Amateur
- · Replies 2 ·
Is There an Inequality Challenge with Real Numbers?
- anemone
- · Replies 6 ·
Undergrad Why use x as the variable in function notation like f(x)
- Mr Davis 97
- · Replies 2 ·
Square Numbers Satisfying $3x^2+x=4y^2+y$
- kaliprasad
- · Replies 4 ·
What are the possible values of x and y in the equation x + 2y > 5?
- squexy
- · Replies 7 ·
Simplify (tan 570° sin 1469°)/(cot 495° cos 781°)
- Alexstrasuz1
- · Replies 4 ·
Undergrad The sum of angles in 3D is not 90 while in 2D it is?
- aosome23
- · Replies 12 ·
Undergrad What is the significance of using a variable as an input to a function?
- Mr Davis 97
- · Replies 1 ·
High School New way to find the Circumference of a Circle
- MacCormaic
- · Replies 11 ·
High School Representing ratios with division
- Mr Davis 97
- · Replies 15 ·
Undergrad Divide by Zero Error: Solving Pendulum Radius
- Sam Smith
- · Replies 2 ·
Undergrad Function notation in physics equations
- Mr Davis 97
- · Replies 10 ·
High School Type of thinking that is conducive to learning mathematics
- Niaboc67
- · Replies 9 ·
High School How to Divide by 9 and Find Remainders
- jim1174
- · Replies 6 ·
Solving Algebra Problems: 2.(c,i),(c,ii),(c,iii) Exam Paper
- pretzel1998
- · Replies 1 ·
Solving Equation $x+a^3=\sqrt[3]{a-x}$ for Real a
- kaliprasad
- · Replies 3 ·
Undergrad Why Do We Often Confuse 'f' and 'f(x)' in Mathematical Notations?
- Mr Davis 97
- · Replies 4 ·
Are these trigonometric and function solutions correct?
- squexy
- · Replies 10 ·
W = F*dAnswer: Work Done by Force F on Cylinder Mass m1: 352.2 J
- aarce
- · Replies 1 ·
Undergrad What Type of Math is Used by Wall St. Financial Wizards?
- bballwaterboy
- · Replies 3 ·
Prove Divisibility of $a^3+b^3+c^3$ Using $(a-b)^2+(b-c)^2+(c-a)^2=abc$
- anemone
- · Replies 1 ·
Evaluating $a^2+ab+b^2=0$: A 2015 Challenge
- anemone
- · Replies 2 ·
Inequality Challenge X: Prove $\ge 3l-4m+n$
- anemone
- · Replies 2 ·
Undergrad F(x) as function or value of the function?
- Mr Davis 97
- · Replies 7 ·
Graduate Why are finite angles considered vectors if they don't follow vector addition?
- <sHoRtFuSe>
- · Replies 1 ·
Roots of $g'(x)$ in AP: Proving the Theory
- anemone
- · Replies 3 ·
Trig Challenge: Proving $\cos^3 y+\sin^3 y=\cos x+\sin x$
- anemone
- · Replies 2 ·
Evaluate a given expression without using a calculator
- anemone
- · Replies 2 ·
Undergrad Prove that the difference of x^3+y and y^3+x is a always a multiple of 6
- willr12
- · Replies 4 ·
Solving 2^x - 2^-x / 2^x + 2^-x = 1/3
- squexy
- · Replies 7 ·
High School Why is the fundamental theorem of arithmetic special?
- japplepie
- · Replies 4 ·
Undergrad How to Draw a Circle Perpendicular to a Vector in 3D Space?
- DivergentSpectrum
- · Replies 12 ·
Graduate Great! Glad to hear you were able to figure it out. Keep up the good work!
- albega
- · Replies 7 ·
What are the real pairs $(a,\,b)$ that satisfy this system of equations?
- anemone
- · Replies 3 ·
What will be the form of the \$k^{th}\$ component of \$x^{(i)}\$?
- evinda
- · Replies 6 ·
Undergrad How do you solve equations containing moduli like f(x,|x|)=0?
- Astudious
- · Replies 3 ·
Undergrad Parallel Planes: Same/Opposite Sides of Origin?
- PFuser1232
- · Replies 3 ·
High School Would a GED math book be a good idea?
- jim1174
- · Replies 2 ·
Is the Remainder of Polynomial $f(x)$ the Same for Two Different Divisors?
- anemone
- · Replies 2 ·
Undergrad How Do You Write Nested Function Compositions with Multiple Variables?
- bjshnog
- · Replies 3 ·
Undergrad Sum of last two digits of 27^27
- Raghav Gupta
- · Replies 23 ·
Graduate Problem in apparent contradiction in Euler's Identity?
- cwbullivant
- · Replies 5 ·
High School What are a, b, and c in volume calculations for prisms and pyramids?
- PFuser1232
- · Replies 5 ·
How Do You Solve This Complex Irrational Equation?
- anemone
- · Replies 2 ·
How can factorization prove the compositeness of a given expression?
- anemone
- · Replies 7 ·
High School Why does cos(22.5°) not equal 2/√5?
- bonodut
- · Replies 6 ·
Undergrad How to self-study mathematics and understand it well?
- icecubebeast
- · Replies 5 ·
NP-Complete Problems to Reading and Understanding
- mathmari
- · Replies 4 ·
Undergrad Cross Product Angle: 0 to π or ACW from a to b?
- PFuser1232
- · Replies 4 ·