What is a Cartesian product? Does it have anything to do with ordered pairs? How do we find the number of elements? And does order of multiplication matter? We'll cover all of this in this video. We'll also solve a few example problems to strengthen our concepts for this topic. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! ( :relations-and-functions-ncert-new/xea4762213f311c5e:untitled-1219/e/cartesian-product-of-sets) Timestamps: 00:00 Moving from ordered pairs to a cartesian product 01:33 Definition of a cartesian product 02:22 Number of elements of a cartesian product 03:11 Practice problems (finding number of elements) 05:33 Is PxQ = QxP? (Example provided) 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: Created by Ashish Gupta