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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Challenge question on equilateral triangle: Prove ∠DBA=42°
- anemone
- · Replies 5 ·
How does 12 + j16 become 20 ∠53.1° in impedance calculations?
- portcharlotte
- · Replies 2 ·
Prove trig identity (cot x -1)/(cot x +1)=(1-sin 2x)/(cos 2x)
- karush
- · Replies 3 ·
What is the linear speed of Santa Fe around the earth's axis in mi/hr
- 699427535
- · Replies 2 ·
High School Are Algebra, Geometry, Probability innate or cultural?
- fbs7
- · Replies 1 ·
Undergrad Solve ln(a/b+1) Using Identity ln(a+b)=ln b + ln(a/b+1)
- Gurasees
- · Replies 10 ·
High School Mathematics in STEM fields: GATEKEEPER OR GATEWAY?
- fresh_42
- · Replies 13 ·
What is the formula for the volume of a thick crust pizza?
- anemone
- · Replies 215 ·
High School Is imaginary "i" a purely aesthetic matter?
- fbs7
- · Replies 44 ·
Find equation of a quadratic with line of symmetry
- doc5555
- · Replies 2 ·
Undergrad How did Euclid go about forming his propositions?
- Manny46
- · Replies 13 ·
Solve sqrt (x+ a) = x −7 when a=-1
- rebo1984
- · Replies 4 ·
High School Why x=2x doesn't have three solutions?
- fbs7
- · Replies 8 ·
Does PEMDAS Apply to All Math Equations?
- SigmaS
- · Replies 1 ·
High School Measuring Angles: Negatives & Quadrants
- Eucliwood
- · Replies 1 ·
High School Is there a symbol for "probably equals"?
- John Bartle
- · Replies 32 ·
High School Can You Find the Function of a Random Curve on Graph Paper?
- thetexan
- · Replies 4 ·
High School What are cosine and sine functions called in relation to Pi?
- Matt Benesi
- · Replies 6 ·
Solving Math Problem: Average Distance from Earth to Proxima Centauri
- dobalganero
- · Replies 1 ·
High School Are f(x) and f(-x) Equivalent Functions?
- dyn
- · Replies 2 ·
Kinematics + Trigonometry Application (Physics 12u)
- Wild ownz al
- · Replies 16 ·
Solve √(x^2+3x+7)-√(x^2-3x+9)+2=0
- SigmaS
- · Replies 5 ·
Least squares method : approximation of a cubic polynomial
- mathmari
- · Replies 3 ·
Rubik's Cube: A Favorite Puzzle Among IT Experts and Scientists
- YoungPhysicist
- · Replies 2 ·
Undergrad Terminology: equation collapse
- nomadreid
- · Replies 11 ·
Undergrad What went wrong in the algebraic steps for ln rules?
- AnotherParadox
- · Replies 1 ·
Quadratic equations ( solving for zeros/roots) trickey
- miller1991
- · Replies 1 ·
What was Sir Michael Atiyah's legacy?
- George Jones
- · Replies 8 ·
Undergrad Getting Points Inside Of A Polygon
- twoski
- · Replies 7 ·
High School Trig Problem Altitudes of Parallelogram
- Trepid
- · Replies 1 ·
Right Isosceles triangle: solve for the length of the unknown legs
- urekmazino
- · Replies 2 ·
Undergrad Euclid's Formula as a test for sufficiency
- e2m2a
- · Replies 6 ·
How to Prove the Ratio of Radii and Angular Speeds of Two Connected Pulleys?
- urekmazino
- · Replies 1 ·
Undergrad Creating a fair playing field for an odd number of players
- twoski
- · Replies 6 ·
What is the relationship between frequency and angular speed?
- urekmazino
- · Replies 1 ·
Help with Lab Work: Acids and Bases Safety
- MermaidWonders
- · Replies 14 ·
High School Is Figure a Polygon? Examining Edges of the Image
- Suyogya
- · Replies 5 ·
Expression sin^n(x)/(sin^n(x)+cos^n(x))
- Vali
- · Replies 2 ·
(0,a) , (b,0) , (2,d) and (e,7) lie on y=2x+1, find a, b, d and e
- Parthyy
- · Replies 2 ·
Wacky explanation in a student solutions manual for manipulating an equation
- chr1s
- · Replies 3 ·
Solving a Challenging Math Problem | Expert Tips & Strategies
- math123456
- · Replies 1 ·
Scale Drawing: What is the real length of the bus
- dave3
- · Replies 1 ·
Undergrad Looking for specific anecdote on math of rogue waves
- phinds
- · Replies 8 ·
Sum of the measures of the interior angles of a heptagon
- yormmanz
- · Replies 1 ·
Solving equation in natural number
- anemone
- · Replies 1 ·
How Can I Prove AH = DK in Triangle Congruency?
- Yazan975
- · Replies 1 ·
Elementary Number Theory proof
- cbarker1
- · Replies 1 ·
Graduate Has the Riemann hypothesis been proven?
- nrqed
- · Replies 74 ·
The shifting of h in vertex form
- miller1991
- · Replies 1 ·
High School How would I write this trig solution?
- opus
- · Replies 19 ·
High School Euclid Division Lemma: Origins & Legacy
- Suyogya
- · Replies 4 ·
Understand Polynomial Terms: Like & Unlike Terms
- PeekaTweak
- · Replies 1 ·
Undergrad Are All Triangles Actually Isosceles? Discover My Greek-Euclidean Proof!
- Konstantinos88
- · Replies 3 ·
K-th convergents of continued fraction
- evinda
- · Replies 6 ·
Undergrad Bezout Identity: Is r∈S U {0} Necessary to Prove?
- Suyogya
- · Replies 3 ·
High School Proving Euclid's Lemma: The Role of Primality in Divisibility
- Suyogya
- · Replies 6 ·
Solutions of an inequality (1-√(1-4x^2)/x < 3
- Vali
- · Replies 4 ·
Help with solution concentration
- Noclue1
- · Replies 2 ·
Convert £0.91 to UK Decimal Currency - Help Needed
- Hobo5
- · Replies 3 ·
Elias Stein, Mathematician Of Harmonic Analysis has Died
- jedishrfu
- · Replies 1 ·
High School Periodic smooth alternating series other than sin and cos
- Matt Benesi
- · Replies 16 ·
High School Why Do Some People Struggle with Math?
- Blop
- · Replies 55 ·
High School How to find the inverse of this equation
- aneikei
- · Replies 12 ·
Which Quadratic Function Has Exactly One X-Intercept?
- yormmanz
- · Replies 3 ·
Undergrad Quadratic, cubic, quartic, quintic equations
- fog37
- · Replies 16 ·
Challenging Classical Mechanics Problems: Can You Solve Them?
- johnherald
- · Replies 3 ·
Undergrad Formal proof for the theorem of corresponding angles
- ScientificMind
- · Replies 1 ·
Volume vs Capacity for Kids: Tips for Explaining
- highmath
- · Replies 2 ·
High School How Do You Solve This Mysterious Number Puzzle?
- YoungPhysicist
- · Replies 10 ·
Graduate The Passing of another Great Mathematician
- jedishrfu
- · Replies 2 ·
High School Help identifying a mathy thing
- YoungPhysicist
- · Replies 9 ·
Inequation with just 3 solutions
- Vali
- · Replies 4 ·
Do Pi and Geometric Shapes Coexist?
- highmath
- · Replies 3 ·
What are some interesting approximations of pi?
- kaliprasad
- · Replies 5 ·
Interesting property about 2019( the current year)
- kaliprasad
- · Replies 4 ·
Graduate Is fractal nature dependent on the number of steps?
- nomadreid
- · Replies 6 ·
Undergrad Converting from spherical to cylindrical coordinates
- meteo student
- · Replies 13 ·
Finding the width of the gorge
- daveyc3000
- · Replies 4 ·
Change bisector from one triangle to another
- roni1
- · Replies 1 ·
Calculator or not? (from the TV show Numb3rs)
- James Willis
- · Replies 20 ·
High School A primitive function graphing tool
- YoungPhysicist
- · Replies 1 ·
High School A new Mersenne prime being found
- YoungPhysicist
- · Replies 2 ·
Find the roots of f(x)+g(x)+h(x) = 0.
- Aryan Pandey1
- · Replies 2 ·
Graduate Modular forms- definition of a cusp
- binbagsss
- · Replies 7 ·
Undergrad Need a proper mathematical name
- Dr.D
- · Replies 7 ·
Undergrad Mathematical Induction 4+11+14+21+....+(5n+(-1)^n
- Yankel
- · Replies 1 ·
Amazing Math Discovery: 8281 is the Only 4 Digit Square with this Quirk
- Wilmer
- · Replies 5 ·
High School What is the formula for this sequence for n-th number
- HAF
- · Replies 5 ·
What is the Magnitude of Force P to Keep a Block Stationary Against a Wall?
- Wild ownz al
- · Replies 1 ·
Undergrad Existence of experience related to i
- Cantor080
- · Replies 16 ·
Undergrad Why can't I reach every cell in a 3x3 square?
- musicgold
- · Replies 8 ·
Understanding Unit Cancellation in Physics Equations
- copperfox
- · Replies 2 ·
Answers: ANUTter Rebus Puzzle Solution
- Wilmer
- · Replies 4 ·
Find the area of the shaded region in terms of pi.
- Etrujillo
- · Replies 3 ·
Terminal Velocity Calculation: Understanding Forces at Play
- jc911
- · Replies 8 ·
Find the areas of segment in circle
- Etrujillo
- · Replies 1 ·
Find the area of sector in a circle in terms of pi. (Geometry)
- Etrujillo
- · Replies 3 ·
Find the height and base of a trapezium
- Etrujillo
- · Replies 1 ·
Areas of Plane Figures: 63.0 & 96.0 | Need Help w/ 3 & 4
- Etrujillo
- · Replies 3 ·
Find radius, circumference, area and arc length in circle
- Etrujillo
- · Replies 2 ·