Geometry - Ch. 2: Reasoning and Proofs (22 of 46) Postulate 1: Ruler (Numberline)
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain Postulate 1:The Ruler, or Number Line, Postulate – points on a line have corresponding points on a number line such that they can have “x-values” called “coordinates” of the points (x1, x2, x3
From playlist GEOMETRY CH 2 PROOFS & REASONING
Inverse Image(Preimage) of Intersection of Sets Proof
Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Inverse Image(Preimage) of Intersection of Sets Proof. Given a function from X to Y and subsets A and B of Y, in this video we prove that f^(-1)(A n B) = f^(-1)(A) n f^(-1)(B). For a subset A of Y, inverse image or preimage of A und
From playlist Proofs
Geometry - Ch. 3: Proofs (5 of 17) Postulates Needed for Proofs
Visit http://ilectureonline.com for more math and science lectures! In this video I will define what is a postulate, and review some of the basic postulates needed for geometry proofs: linear pair, ruler, segment addition, protractor, angle addition, line intersecting lines, and plane. T
From playlist GEOMETRY CH 3 PROOFS
Geometry - Ch. 4: Lines and Angles (2 of 37) Postulates of Parallel and Perpendicular Lines
Visit http://ilectureonline.com for more math and science lectures! In this video I will define and explain postulates of parallel and perpendicular lines. 1) If there is a line and a point not on the line then there is exactly one line through the point PARALLEL to the initial line. 2) I
From playlist GEOMETRY CH 4 LINES AND ANGLES
Geometry - Ch. 2: Reasoning and Proofs (21 of 46) What is a Postulate?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is a postulate. A postulate, or axium, is a proposition that is not proved or demonstrated but considered to be self evident. It is a “truth” that is accepted. A postulate serves as a sta
From playlist GEOMETRY CH 2 PROOFS & REASONING
Pre-Calculus Write the equation of a line
This example shows how to write the equation of a line using a given slope and point. The point-slope formula is used to accomplish this. Remember that in the formula only the x and y with subscripts get replaced. For more videos visit http://www.mysecretmathtutor.com
From playlist Pre-Calculus - Linear Functions
Geometry - Ch. 2: Reasoning and Proofs (29 of 46) Postulate 8: The Plane Postulate
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain Postulate 8: The Plane Postulate – Through any 3 non-collinear points, exists exactly one plane. Next video in this series can be seen at: https://youtu.be/NuiTMuNaUdA
From playlist GEOMETRY CH 2 PROOFS & REASONING
Inverse Function for f(x) = (x-2)/(x+2)
Precalculus: Let f(x) = (x-2)/(x+2). Show that f is one-one and sketch the graph of f^{-1}. The find a formula for f^{-1} and verify. We note how to switch four points and the asymptotes from the graph of f to the graph of f^{-1}.
From playlist Precalculus
Higher Algebra 6: Derived Functors
In this video, we define and discuss derived functors between derived categories of abelian categories. Additionally we discuss the notion of adjoint functors and Kan extensions. Feel free to post comments and questions at our public forum at https://www.uni-muenster.de/TopologyQA/index.
From playlist Higher Algebra
Model Theory - part 07 - Semantics pt 1
This is the first video on semantics.
From playlist Model Theory
This popular problem is stumping everyone, and many, many people emailed it to me. I give extra thanks Chaitanya from India who was the first person who sent it to me. I also thank David K, Achille Hui, and Seyed who found geometric solutions to this problem when I posted it to Math Stack
From playlist Math Puzzles, Riddles And Brain Teasers
Pre-Calculus - How to solve a linear equation
This video will show an example of solving a linear equation. Remember that when solving you have two goals. 1) Get your variables together 2) Isolate the variable. For more videos please visit http://www.mysecretmathtutor.com
From playlist Pre-Calculus - Linear Functions
8ECM Invited Lecture: Daniel Kressner
From playlist 8ECM Invited Lectures
Alexander Goncharov - 3/4 Quantum Geometry of Moduli Spaces of Local Systems...
Quantum Geometry of Moduli Spaces of Local Systems and Representation Theory Lectures 1-3 are mostly based on our recent work with Linhui Shen. Given a surface S with punctures and special points on the boundary considered modulo isotopy, and a split semi-simple adjoint group G, we defin
From playlist Alexander Goncharov - Quantum Geometry of Moduli Spaces of Local Systems and Representation Theory
Learn Algebra Formulas – Understand In 18 Minutes
Learn the most important formulas in algebra. Many students struggle with algebra because they don’t really understand how and when to use key formulas when solving math problems. This video will go over the key algebra formulas that each student needs to understand very well. TabletCla
From playlist Algebra
Using Excel to Construct Two Sample Confidence Intervals for Means and Proportions
A Microsoft Excel tutorial on Two-Sample Confidence Intervals: The Formulas 0:53 CI for Two Means (𝜎 Known) 3:31 CI for Two Means (𝜎 Unknown – Uneq. Var) 11:49 CI for Two Means (𝜎 Unknown – Eq. Var) 17:51 CI for Paired Means 23:58 CI for Two Proportions 29:21 This tutorial covers using Ex
From playlist Using Excel in Statistics
Introduction to the numerical solution of inverse problems
Advanced Instructional School on Theoretical and Numerical Aspects of Inverse Problems URL: https://www.icts.res.in/program/IP2014 Lecture Title: Introduction to the numerical solution of inverse problems and shape detection in electrical impedance tomography Dates: Monday 16 Jun, 2014 -
From playlist Advanced Instructional School on Theoretical and Numerical Aspects of Inverse Problems
Are we prepared to learn online? | Office Hours Day 1
In this livestream I begin by asking if we are prepared to learn online as well as discuss what students around the world are doing in their classes. How are teachers teaching their students online? 00:00 intro 31:26 Find the Distance Formula y=-4x+5 y=-4x+7 35:06 Finding Operation for R
From playlist Open QandA 2020
Finding the first five terms of a sequence Example 2
Finding the first five terms of a sequence. Given a sequence we compute the first five terms. Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys
From playlist Precalculus and Algebra
New Cohen-Lenstra heuristics by constructing measures from moments - Will Sawin
Joint IAS/PU Number Theory Seminar Topic: New Cohen-Lenstra heuristics by constructing measures from moments Speaker: Will Sawin Affiliation: Columbia University Date: October 06, 2022 The Cohen-Lenstra heuristics give predictions for the distribution of the class groups of a random quad
From playlist Mathematics