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Forums
Mathematics
General Math Forum
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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.
Math Proof Training and Practice
A gap in resources that should help students visualise mathematics
Sep 4, 2025
Math Guides, Tutorials and Articles
MHB
Deriving the first and second order Newton-Cotes formulas
Aug 30, 2022
MHB Math Problem of the Week
POTW
Sum of an Alternating Series
Mar 28, 2025
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MHB
Problem-Solving Strategy for Dynamics Problems
Sep 3, 2022
Replies
2
Views
32K
Sticky
B
List of Online Calculators for Math, Physics, Earth and Other Curiosities
Apr 15, 2019
Replies
0
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10K
Sticky
What Topics Do These Math FAQs Cover?
Jun 22, 2017
Replies
6
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14K
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Trigonometry problem of interest
Saturday, 4:55 AM
2
Replies
71
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2K
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Midpoint(s) of the unbounded number line
Oct 25, 2025
Replies
15
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227
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Arithmetic and our place value system
Oct 23, 2025
Replies
6
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162
Unit Circle Double Angle Derivations
Oct 23, 2025
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6
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351
B
Six Pencil Puzzle
Oct 21, 2025
Replies
30
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968
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Video on imaginary numbers and some queries
Oct 6, 2025
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3
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2K
B
Imaginary Pythagoras
Oct 4, 2025
Replies
13
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475
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Non-orthogonal bases
Sep 30, 2025
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12
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471
Insights
What Exactly is Dirac’s Delta Function? - Insight
Sep 16, 2025
Replies
3
Views
792
Insights
Fermat's Last Theorem
Sep 16, 2025
3
Replies
105
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7K
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An exact Paraxial equation derivation, 100% Cartesian
Sep 12, 2025
Replies
6
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2K
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Useless continued fraction for 1
Sep 2, 2025
Replies
6
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339
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Proving Newton's forward difference interpolation formula
Sep 1, 2025
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1
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372
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Geometry problem of interest with a 3-4-5 triangle
Aug 21, 2025
2
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59
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2K
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What could prove this wrong? I'm having a dispute with friends
Aug 21, 2025
2
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94
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4K
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Software for entering Mathematics Equations
Aug 14, 2025
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5
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329
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Am I misapplying something here? (Exponentials; Euler's identity)
Aug 10, 2025
Replies
3
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297
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Videos of 4D Die and Sphere
Aug 4, 2025
Replies
3
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1K
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Is this the right set mapping notation for a limit in two variables?
Aug 2, 2025
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8
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1K
Insights
Fixing Things Which Can Go Wrong With Complex Numbers
Jul 28, 2025
Replies
7
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1K
A
Is this Recursive Pattern in the Collatz Sequence Known?
Jul 23, 2025
Replies
3
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423
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More similar triangle problems
Jul 22, 2025
Replies
16
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665
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Why fixed point iteration of ##x^3 = 1-x^2## doesn't converge when ##x_0= 0##
Jul 20, 2025
Replies
16
Views
633
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How does the Riemann Hypothesis/Riemann Zeta function even work?
Jul 17, 2025
Replies
17
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1K
A
Question about intersection of coordinate rings
Jul 11, 2025
Replies
1
Views
723
B
Excel: converting a 3-ish week count into a monthly count
Jul 7, 2025
Replies
15
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1K
B
Geometry Puzzle with 20 points in a cross pattern
Jul 2, 2025
Replies
31
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2K
B
Death Rally: an intricate probability problem?
Jun 12, 2025
Replies
8
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2K
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Solving equations but getting an identity - what mistakes were made?
Jun 2, 2025
Replies
4
Views
980
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About a definition: What is the number of terms of a polynomial P(x)?
May 31, 2025
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48
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3K
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Leibniz Rule Videos on Digital-University
May 23, 2025
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0
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1K
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Solving a system of equations with 5 unknowns
May 23, 2025
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10
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1K
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"Land capture" graph paper game
May 19, 2025
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13
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1K
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In a triangle, is the angle between the points of contact of the inscribed circle with the sides 120 degrees?
May 11, 2025
Replies
2
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968
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How do you multiply fractions again? My brain just froze 😅
May 7, 2025
Replies
2
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971
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How to convince someone that an event repeating an infinite number of times does not guarantee every outcome?
May 6, 2025
Replies
23
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2K
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Can Angular Velocity Accurately Control Ragdoll Limbs in Game Physics?
May 6, 2025
Replies
6
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3K
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##x\lt y \lt z## positive integer numbers and if ##\dfrac 1x+\dfrac 1y+\dfrac 1z=\dfrac 13##
May 2, 2025
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6
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1K
B
How Many Straight Lines to Connect an N by M Array of Points in a Closed Loop?
Apr 25, 2025
Replies
25
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2K
B
The Pitcher's Mound
Apr 22, 2025
Replies
10
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2K
B
Is It Better to Run or Walk in the Rain?
Apr 19, 2025
Replies
46
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7K
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(0,1) is uncountable using binary expansions?
Apr 19, 2025
Replies
15
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2K
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How were "e" and "pi" found?
Apr 18, 2025
Replies
26
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2K
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How was this substitution possible?
Apr 17, 2025
Replies
5
Views
999
A
Challenging integral involving exponentials and logarithms
Apr 15, 2025
Replies
14
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2K
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Are there English names for these formulas? (binomial formulas)
Apr 11, 2025
Replies
42
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4K
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1lb cube of 99% pure copper?
Apr 7, 2025
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10
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2K
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Proof of a fact about real numbers - transcendental and algebraic
Apr 6, 2025
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7
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1K
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Which conditions should I check to see if a quadrilateral is a square?
Mar 29, 2025
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17
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2K
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Finding the Largest (or smallest) Value of a Function - given some constant symmetric errors
Mar 26, 2025
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3
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1K
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How is it that law of sines does not work in this exercise?
Mar 26, 2025
2
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70
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5K
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Expansion with respect to ##z_1##
Mar 26, 2025
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1
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1K
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How to prove this for every Arithmetic Progression?
Mar 26, 2025
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12
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1K
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Mass estimate only through mass rate of change
Mar 22, 2025
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4
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1K
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Modelling object w/ functions, how to find volume loss from indents?
Mar 21, 2025
Replies
9
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1K
B
Given an equation, find the value of this expression
Mar 17, 2025
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17
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2K
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How to see that cos(z) is unbounded, but cos(xy)+isin(xy) is bounded?
Mar 16, 2025
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8
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1K
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Understanding the Pythagorean Theorem
Mar 13, 2025
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38
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4K
Insights
Why Vector Spaces Explain The World: A Historical Perspective
Mar 13, 2025
Replies
0
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7K
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Billard balls on table
Mar 10, 2025
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10
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2K
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How is the Euclid Math Contest marked?
Mar 5, 2025
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2
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2K
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Estimating ##\pi## with darts
Mar 3, 2025
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15
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2K
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Probability of future event as predicted by laws of nature
Feb 28, 2025
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5
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1K
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Exploring Interesting Mathematical Puzzles
Feb 28, 2025
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2
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1K
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Can I add any number of zeros to 0.00 ... 1?
Feb 26, 2025
Replies
30
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2K
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Calculating the odds of drawing 3 "no" notes from a hat with 3 "no" and 3 "yes" notes
Feb 23, 2025
Replies
3
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1K
B
Sine Multiplication
Feb 22, 2025
Replies
5
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2K
MHB
(Seemingly) Random Sequences
Feb 21, 2025
Replies
7
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2K
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Open problems in continued fractions
Feb 20, 2025
Replies
6
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3K
Exploring Unconventional Addition: Can Mathematics Embrace New Foundations?
Feb 17, 2025
Replies
8
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1K
B
Is this a new theorem?
Feb 16, 2025
Replies
9
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2K
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Fermat point for quadrilaterals
Feb 13, 2025
Replies
7
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2K
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ABC triangle with integer sides
Feb 12, 2025
Replies
17
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2K
A
Fourier series approximation of a discontinuous eddy function
Feb 7, 2025
Replies
1
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2K
B
"Half of normal distribution"
Feb 7, 2025
Replies
9
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2K
B
Confused about ciphers in the book 'Arithmetic for the Practical Man'
Feb 2, 2025
Replies
13
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2K
A
Possible number of chess games
Jan 31, 2025
Replies
20
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3K
B
Nonsense can be truth in logic?
Jan 24, 2025
2
Replies
84
Views
6K
I
Change of variables clarification
Jan 23, 2025
Replies
5
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2K
B
Question about PEMDAS/BODMAS ambiguity
Jan 21, 2025
2
Replies
77
Views
6K
B
Need an on-line calculator for a simple calculation
Jan 17, 2025
Replies
12
Views
3K
B
The mathematics of transforming images in Adobe Premiere - Part 1
Jan 13, 2025
Replies
2
Views
2K
B
When are two vectors collinear and coplanar?
Jan 13, 2025
Replies
10
Views
2K
I
Transforming coordinates between Cartesian and spherical
Jan 12, 2025
Replies
1
Views
2K
Solving simultaneous equations
Jan 11, 2025
Replies
5
Views
3K
I
Can anyone solve this age problem?
Jan 10, 2025
Replies
33
Views
2K
B
Fractional/decimal powers
Jan 6, 2025
Replies
10
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2K
I
My attempt to understand horizontal transformations of functions
Jan 6, 2025
Replies
6
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2K
I
Relation between a circle and line in complex plane
Jan 4, 2025
Replies
16
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2K
A
Integral Points of an Elliptic Curve over a Cyclotomic Tower
Dec 29, 2024
Replies
5
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2K
I
Proving that fractions are the same as division
Dec 25, 2024
Replies
2
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2K
A
Proving Goldbach's conjecture by induction (or why it doesn't seem to work)
Dec 23, 2024
Replies
10
Views
2K
B
A simple trigonometry problem: Put eight coins around a central coin
Dec 17, 2024
Replies
37
Views
8K
B
Tips on developing and improving number sense and basic math skills
Dec 12, 2024
Replies
13
Views
2K
B
I had a question about a way to write Euler's identity
Dec 11, 2024
Replies
10
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2K
I
Evaluation of the sum 1^m+3^m+5^m+ ....................(2n+1)^{m}
Nov 11, 2024
Replies
1
Views
2K
B
How to find the objects' areas in this photo in mm^2?
Nov 10, 2024
Replies
14
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2K
B
Older student going back to basics
Nov 3, 2024
Replies
4
Views
2K
B
New solutions to old, historic problems
Oct 31, 2024
Replies
2
Views
2K
B
Probability that 2 distinct integers are divisible by the same number
Oct 29, 2024
Replies
9
Views
2K
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