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Curated by: Khan Academy India - English (17 videos)
In this worked example, we find domain and range of a relation defined in the set builder form. An essential skill touched in this video is to know how to break down definitions of relations written in set-builder form. We show with an example the usefulness of realising domain and range visually before actually writing things down in roster form. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (https://www.khanacademy.org/math/ncert-class-11/xea4762213f311c5e:relations-and-functions-ncert-new/xea4762213f311c5e:untitled-1222/e/domain-and-range-of-relations-infinite-sets) Timestamps: 00:00 Problem (relation given in set-builder form) 00:45 Breaking down what 'on a set' means 01:30 Refresher on relations and useful terms 02:15 Solution (visualising the relations first) 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