Angle between lines (challenge problems) (Hinglish) | St. lines | Grade 11 | Math | Khan Academy

From the creator

In this video, we solve two challenging problems involving angle between lines. In both the problems, we leverage the context given to generate equations involving the slope of these lines. The challenge here is solving and making sense of the mod equations. We also sometimes get results with non-real values of the slope which we discard. We'll learn how to make sense of these results visually. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (https://www.khanacademy.org/math/ncert-class-11/xea4762213f311c5e:straight-lines-ncert-new/xea4762213f311c5e:introduction-and-revision-of-concepts/e/midpoint_formula) Timestamps: 00:00 Problem 1 - One slope is double the other 01:00 Solving the mod equation 02:52 Making sense of the solution set (visually) 04:00 Problem 2 - Pair of lines equally inclined to third 05:32 Solving the mod equation 07:40 Solving the quadratic equation 08:32 Making sense of the solution set (visually) Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Ashish Gupta

Published 2025-03-04 · Watch on YouTube ↗
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