The Learning Edge

## Average Speed and Average Velocity – Problem 3

Solution to Problem 3. Video Rating: / 5

## IIT JEE trigonometry problem 1 | Trig identities and examples | Trigonometry | Khan Academy

2010 IIT JEE Paper I #29 Trigonometry problem Watch the next lesson: https://www.khanacademy.org/math/trigonometry/less-basic-trigonometry/more-trig-examples/v/iit-jee-trigonometric-maximum?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Missed the previous lesson? https://www.khanacademy.org/math/trigonometry/less-basic-trigonometry/more-trig-examples/v/2003-aime-ii-problem-14?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Trigonometry on Khan Academy: Big, fancy word, right? Don’t be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry (“trig” as it’s sometimes called) has something to do with triangles. You would be right! […]

## Average Velocity Example Problem with Three Velocities

This example problem works through finding the average velocity when we have multiple parts to the givens. It involves splitting the given information into separate parts, finding the total displacement, the total time and then the total average velocity. Content Times: (click on time to access) 0:23 Reading the Problem 0:56 Translating the problem to […]

## Julius Sumner Miller Lesson 3: Newton’s Second Law of Motion – The Elevator Problem

It is rather obvious that the greater the MASS – the greater the INERTIA of a body – the harder it is to put it into motion. That is: if a body of MASS M requires a FORCE F to give it “so much” motion – that is, so much acceleration – than a body […]

## Art of Problem Solving: Counting Paths on a Grid

Art of Problem Solving’s Richard Rusczyk explains how to count the number of paths from one point to another on a grid. Video Rating: / 5

## Lesson 7.7 Video 1 – Compound Interest Problem, Solving for Time

In this video, I solve a compound interest problem for TIME. Video Rating: / 5

## Probability Problem Involving ‘ At Least ‘ and ‘ Complements ‘

Probability Problem : ‘ At Least ‘ and ‘ Complements ‘. Here we have a typical probability problem: 5 students pick from 12 distinct watches. We find the probability that at least 2 of them pick the same type of watch. We use complements and permutations to find the solution. Video Rating: / 5

## Introduction to Newton’s Second Law of Motion with Example Problem

The application of Newton’s Second Law is when you really understand what the net force equals mass times acceleration where both force and acceleration are vectors really means. Therefore, we introduce Newton’s Second Law and then do an example problem. Content Times: 0:11 Defining Newton’s Second Law 1:00 The example problem 1:51 Drawing the Free […]

## Approximating instantaneous rate of change word problem | Differential Calculus | Khan Academy

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/differential-calculus/taking-derivatives/secant-line-slope-tangent/e/slope-of-secant-lines?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus Watch the next lesson: https://www.khanacademy.org/math/differential-calculus/taking-derivatives/secant-line-slope-tangent/v/approximating-equation-of-tangent-line-word-problem-1?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus Missed the previous lesson? https://www.khanacademy.org/math/differential-calculus/taking-derivatives/secant-line-slope-tangent/v/slope-of-a-secant-line-example-3?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus Differential calculus on Khan Academy: Limit introduction, squeeze theorem, and epsilon-delta definition of limits. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their […]

## HARD Geometry Problem With Clever Solution

A rectangle R is tiled by smaller rectangles, each of which has either an integer height or an integer width (or both). Prove the rectangle R also has an integer height or an integer width (or both). Blog post (text/image solution): http://wp.me/p6aMk-4oi There are actually many ways to solve this problem. Here are 14 proofs:, […]

## Tricky L’Hopital’s Rule problem | Derivative applications | Differential Calculus | Khan Academy

L’Hôpital’s Rule Example 3 Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/differential-calculus/derivative_applications/lhopital_rule/e/lhopitals_rule?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus Watch the next lesson: https://www.khanacademy.org/math/differential-calculus/derivative_applications/lhopital_rule/v/proof-of-special-case-of-l-hopital-s-rule?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus Missed the previous lesson? https://www.khanacademy.org/math/differential-calculus/derivative_applications/lhopital_rule/v/lhopitals-rule-to-solve-for-variable?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus Differential calculus on Khan Academy: Limit introduction, squeeze theorem, and epsilon-delta definition of limits. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners […]

## Microeconomics Practice Problem – Calculating and Graphing the Costs of Production

This video shows how to calculate various forms of cost (total fixed cost, total variable cost, average variable cost, average total cost, average fixed cost, and marginal cost) based on total cost information and shows graphically what these costs look like. The problem is taken from Essentials of Economics, 2nd Edition, by Paul Krugman, Robin […]

## GMAT Techniques: How to eliminate wrong answers on GMAT Problem Solving | Kaplan Test Prep

Finding the right answer to a GMAT problem is hard enough, but the GMAT makers include trap wrong answers as well. This how-to video will show you tricks for eliminating wrong answers and finding correct ones on algebra, roman numeral, and percent problems, and how to avoid common traps. Video Rating: / 5

## Solving a distance, rate, time problem using a linear equation

Solving a distance, rate, time problem using a linear equation