https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/v/universal-set-and-absolute-complement-indian-accent 2025-06-04T10:04:13.13703146Z Universal set and absolute complement Lets understand more challenging set ideas and notation like the universal set and absolute complement. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Universal set and absolute complement Lets understand more challenging set ideas and notation like the universal set and absolute complement. https://cdn.kastatic.org/ka-youtube-converted/eFGKbjJxwPg.mp4/eFGKbjJxwPg.mp4 350 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/v/intersection-and-union-of-sets-indian-accent 2025-06-04T10:04:13.13703146Z Intersection and union of sets To find the intersection of two or more sets, you look for elements that are contained in all of the sets. To find the union of two or more sets, you combine all the elements from each set together, making sure to remove any duplicates. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Intersection and union of sets To find the intersection of two or more sets, you look for elements that are contained in all of the sets. To find the union of two or more sets, you combine all the elements from each set together, making sure to remove any duplicates. https://cdn.kastatic.org/ka-youtube-converted/u36t9ofHJ2k.mp4/u36t9ofHJ2k.mp4 409 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/v/properties-of-union-of-sets 2025-03-01T15:52:37.13987578Z Properties of Union of sets In this video, we'll look at a few properties of Union of sets. We'll visualise them using Venn diagrams to get a better intuition. Key properties discussed include - Commutative law, Associative law, Law of identity element, Idempotent law, and Law of U. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Properties of Union of sets In this video, we'll look at a few properties of Union of sets. We'll visualise them using Venn diagrams to get a better intuition. Key properties discussed include - Commutative law, Associative law, Law of identity element, Idempotent law, and Law of U. https://cdn.kastatic.org/ka-youtube-converted/V8Vsvz24sv0.mp4/V8Vsvz24sv0.mp4 243 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/v/properties-of-intersection-of-sets 2025-03-01T15:52:37.13987578Z Properties of Intersection of sets In this video, we'll look at a few properties of Intersection of sets. We'll visualise them using Venn diagrams to get a better intuition. Key properties include - Commutative law, Associative law, Law of identity element, Law of U, Idempotent law, and Distributive law. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Properties of Intersection of sets In this video, we'll look at a few properties of Intersection of sets. We'll visualise them using Venn diagrams to get a better intuition. Key properties include - Commutative law, Associative law, Law of identity element, Law of U, Idempotent law, and Distributive law. https://cdn.kastatic.org/ka-youtube-converted/VgMzDXzR2p8.mp4/VgMzDXzR2p8.mp4 299 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/e/union-of-sets 2026-04-08T00:16:02.937952483Z Union of sets Find union of two sets. srijan exercise https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/e/intersection-of-sets 2026-04-07T22:59:30.107127435Z Intersection of sets Find intersection of two sets. srijan exercise https://www.khanacademy.org/math/statistics-probability/probability-library/basic-set-ops/v/relative-complement-or-difference-between-sets 2020-08-28T01:50:22Z Relative complement or difference between sets Sal shows an example finding the relative complement or difference of two sets A and B. Sal Khan video https://cdn.kastatic.org/googleusercontent/hvlYkcIS0gb4u33eAiGNKYaSSL0WfaLKbHBUOdgg6QkPZu2ltHi_MrlofJ2jKMZhlAPQISdfDjWECGfnU7JcbEjU Relative complement or difference between sets Sal shows an example finding the relative complement or difference of two sets A and B. https://cdn.kastatic.org/ka-youtube-converted/2B4EBvVvf9w.mp4/2B4EBvVvf9w.mp4 375 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/v/demorgan-s-law-and-other-properties-of-complement-sets 2025-03-01T15:52:37.13987578Z Demorgan's Law and other properties of Complement sets In this video, we'll look at a few properties of complement sets. We'll visualise them using Venn diagrams to get a better intuition. Key properties discussed include - Complement law of U, Complement law of Phi, Law of double complementation and Law of empty and universal sets. Finally, we take a close look at Demorgan's law. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Demorgan's Law and other properties of Complement sets In this video, we'll look at a few properties of complement sets. We'll visualise them using Venn diagrams to get a better intuition. Key properties discussed include - Complement law of U, Complement law of Phi, Law of double complementation and Law of empty and universal sets. Finally, we take a close look at Demorgan's law. https://cdn.kastatic.org/ka-youtube-converted/ao8w25ypGXM.mp4/ao8w25ypGXM.mp4 334 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/e/difference-of-sets 2026-04-07T23:36:17.218592739Z Difference of sets Find difference of two sets. srijan exercise https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/e/operations-on-sets-intermediate 2026-04-08T01:15:04.085520103Z Operations on sets (intermediate) Operations involving three sets, some conditional questions. srijan exercise https://www.khanacademy.org/math/statistics-probability/probability-library/basic-set-ops/v/bringing-the-set-operations-together 2020-08-28T01:50:19Z Bringing the set operations together Sal summarizes the set operations that he has discussed in the previous videos. Sal Khan video https://cdn.kastatic.org/googleusercontent/nvhBNWvfV-qwy6a0wBv1LDUC2Mdg0GZRhHgTp6EJSEvcViUIrKK2M_kT4ZWD2s_YMptdNCjQM-Tq1R-_oAfqH78 Bringing the set operations together Sal summarizes the set operations that he has discussed in the previous videos. https://cdn.kastatic.org/ka-youtube-converted/OCNXS_m1HWU.mp4/OCNXS_m1HWU.mp4 388 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/e/complement-of-a-set 2025-03-01T15:52:37.13987578Z Complement of a set (basic) Find complement of given set. srijan exercise https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/e/complement-of-a-set-intermediate 2025-03-01T15:52:37.13987578Z Complement of a set (intermediate) Tougher questions on complements, involving de morgan's laws, relations between universal set, its subset and complement of its subsets. srijan exercise https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/v/applying-properties-of-intersection-and-union-of-sets 2025-04-16T13:00:24.705396405Z Applying properties of intersection and union of sets In this video, we apply properties of intersection and union of sets to prove given statements about sets. The first problem asks us to prove that two given sets are equal if they satisfy a given criteria. Next problem involves proving that four given statements are equivalent. The next set of problems involve combination of difference, intersection, and union of sets. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Applying properties of intersection and union of sets In this video, we apply properties of intersection and union of sets to prove given statements about sets. The first problem asks us to prove that two given sets are equal if they satisfy a given criteria. Next problem involves proving that four given statements are equivalent. The next set of problems involve combination of difference, intersection, and union of sets. https://cdn.kastatic.org/ka-youtube-converted/_lDdRbtmowU.mp4/_lDdRbtmowU.mp4 391 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/v/conceptual-problems-on-subsets-of-sets 2025-05-22T11:09:14.016569349Z Conceptual problems on subsets of sets In this video, we tackle a few conceptual problems involving subsets of sets. We analyse the difference between what it means to be a subset of another set and what what it means to belong to a set. We realise that sets can also contain sets as elements. We look at few examples to solidify our understanding before diving into the true and false statements given in the problem. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Conceptual problems on subsets of sets In this video, we tackle a few conceptual problems involving subsets of sets. We analyse the difference between what it means to be a subset of another set and what what it means to belong to a set. We realise that sets can also contain sets as elements. We look at few examples to solidify our understanding before diving into the true and false statements given in the problem. https://cdn.kastatic.org/ka-youtube-converted/YSD80ER3cRs.mp4/YSD80ER3cRs.mp4 677 Operations on sets https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:sets-ncert-new/x0419e5b3b578592a:untitled-1203/e/applying-properties-of-intersection-and-union-of-sets 2025-05-22T15:13:46.85517145Z Applying properties of intersection and union of sets Applying properties of intersection and union of sets Ashish Gupta exercise