Green and blue tangent circles, with centers A, D. Parallelogram ADCB, with C on the edge of the green. Red semicircle on diameter AC. Dotted circle through C with center B. Show that the green, red, and dotted arcs have a common point. mirangu.com/sloppy-clothes/ By Marshall W. Buck

Another Record-busting Prime Number in the Never-ending Quest for Enormous Primes. thatsmaths.com/2024/11/21/the… via Peter Lynch

Pascal's Combinatorial Rule can be proved in a sentence: "If from a set of n+1 we choose k objects, we either exclude the last one, in which case we choose k from the first n, or include it, in which case we choose k-1 from the remaining n". #MathType #math #mathfacts

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Systems of Linear Equations: from Equivalent Systems to the Rouché-Capelli Theorem A must-read for Linear Algebra students ⬅⬆➡ bit.ly/2TXTLAH #math #science #iteachmath #mtbos #visualization #elearning #algebra

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NEW VIDEO: Oxford University Maths Admissions Test 2022 Question 9 What initially looks like a tricky probability calculation is simplified by realising you only need to consider one of the events to identify the correct answer. How would you solve it? youtube.com/shorts/kdEzY8N…

ICYMI: Dimensions has a brilliant, very visual and pedagogical introduction to complex numbers bit.ly/2VahJWk (from Dimensions: A Walk through Mathematics) #math #science #iteachmath #mtbos #visualization #elearning #algebra

Given a way of finding the midpoint of any segment (and connecting points to make lines, and intersecting lines to get points), construct the average of 5 points, using only 4 midpoint constructions. (Shown is a method using 5.) mirangu.com/average-point-… By Marshall W. Buck

The Binomial Theorem allows to quickly expand expressions in the form (x+y)^n as it describes the algebraic expansion of powers of a binomial. The expansion will have n+1 terms and there is always a symmetry in the coefficients in front of the terms. #math #mathfacts

#GreatBooks4Math The Princeton Companion to Mathematics Timothy Gowers (Timothy Gowers @wtgowers), 2008 #math #science #iteachmath #mtbos #elearning

Thales' theorem states that a triangle inscribed in a circle, with one side being the circle's diameter, is always a right triangle. This simple yet powerful theorem is a fundamental concept in geometry and has wide-ranging applications. #math #mathematics #mathfacts

Wow!