https://hi.khanacademy.org/math/class-12-bridge/x09646558c1ff0797:set-theory/x09646558c1ff0797:set/v/what-are-sets 2025-03-24T05:52:22.847271672Z समुच्य क्या है? (What are sets?) In this video, we look at a few examples of well-defined lists of objects - which we call sets. We then define what sets are before looking at some common sets from the Math world. Finally, we take note of some common norms and notations that we need to be careful with while dealing with this chapter. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw समुच्य क्या है? (What are sets?) In this video, we look at a few examples of well-defined lists of objects - which we call sets. We then define what sets are before looking at some common sets from the Math world. Finally, we take note of some common norms and notations that we need to be careful with while dealing with this chapter. https://cdn.kastatic.org/ka-youtube-converted/STv4PWvTgjk.mp4/STv4PWvTgjk.mp4 372 समुच्चय और उनका निरूपण (Sets and their representations) https://hi.khanacademy.org/math/class-12-bridge/x09646558c1ff0797:set-theory/x09646558c1ff0797:set/v/roster-and-set-builder-form 2025-03-24T05:52:22.847271672Z रोस्टर तथा समुच्चय निर्माण रूप (Roster and Set-builder form) This video showcases two ways of representing sets. Roster method (which is when we write down the answers) and Set - builder method (which is when we simply pose the questions). We understand the notations for both the methods and look at a number of examples. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw रोस्टर तथा समुच्चय निर्माण रूप (Roster and Set-builder form) This video showcases two ways of representing sets. Roster method (which is when we write down the answers) and Set - builder method (which is when we simply pose the questions). We understand the notations for both the methods and look at a number of examples. https://cdn.kastatic.org/ka-youtube-converted/ibY8M3WqMNE.mp4/ibY8M3WqMNE.mp4 432 समुच्चय और उनका निरूपण (Sets and their representations) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:sets-ncert-new/x808831787a7b08a2:sets-and-their-representations/v/worked-example-set-builder-to-roster-form 2025-03-24T05:52:22.847271672Z उदाहरण - समुच्चय निर्माण रूप से रोस्टर रूप (Worked example - Set builder to Roster form) We practice converting sets from Set builder to Roster form in this video. This means that we'll be given some math questions and we'll be writing down the answers for each. Just that we'll be speaking the language of sets this time. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw उदाहरण - समुच्चय निर्माण रूप से रोस्टर रूप (Worked example - Set builder to Roster form) We practice converting sets from Set builder to Roster form in this video. This means that we'll be given some math questions and we'll be writing down the answers for each. Just that we'll be speaking the language of sets this time. https://cdn.kastatic.org/ka-youtube-converted/twSmHG6IVlU.mp4/twSmHG6IVlU.mp4 271 समुच्चय और उनका निरूपण (Sets and their representations) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:sets-ncert-new/x808831787a7b08a2:sets-and-their-representations/v/worked-example-roster-to-set-builder-form 2025-03-24T05:52:22.847271672Z उदाहरण - रोस्टर रूप से समुच्चय निर्माण रूप (Worked example - Roster to Set Builder form) In this video, we do things in reverse. We move sets from Roster to Set builder form. We're given the answers, we're finding the questions! The only thing to be careful about is the set notation. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw उदाहरण - रोस्टर रूप से समुच्चय निर्माण रूप (Worked example - Roster to Set Builder form) In this video, we do things in reverse. We move sets from Roster to Set builder form. We're given the answers, we're finding the questions! The only thing to be careful about is the set notation. https://cdn.kastatic.org/ka-youtube-converted/3OdN0O6DPEE.mp4/3OdN0O6DPEE.mp4 320 समुच्चय और उनका निरूपण (Sets and their representations) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:sets-ncert-new/x808831787a7b08a2:sets-and-their-representations/v/empty-finite-and-infinite-sets 2025-03-24T05:52:22.847271672Z रिक्त, परिमित और अपरिमित समुच्चय (Empty, Finite, and Infinite sets) Can we classify sets based on the number of elements they have? Definitely! In this video, we'll categorise sets into three buckets - Empty sets, Finite sets, and Infinite sets. We'll also look at a number of examples. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw रिक्त, परिमित और अपरिमित समुच्चय (Empty, Finite, and Infinite sets) Can we classify sets based on the number of elements they have? Definitely! In this video, we'll categorise sets into three buckets - Empty sets, Finite sets, and Infinite sets. We'll also look at a number of examples. https://cdn.kastatic.org/ka-youtube-converted/QcAh2N2oc7E.mp4/QcAh2N2oc7E.mp4 309 समुच्चय और उनका निरूपण (Sets and their representations) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:sets-ncert-new/x808831787a7b08a2:sets-and-their-representations/v/equal-sets 2025-03-24T05:52:22.847271672Z समान समुच्य (Equal sets) Are sets ever equal? What makes them equal? Turns out if they have the exact same elements, two sets can be considered equal. It is much more convenient to compare sets in their roster forms than set-builder forms. Let's have a closer look at equal sets through some examples. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw समान समुच्य (Equal sets) Are sets ever equal? What makes them equal? Turns out if they have the exact same elements, two sets can be considered equal. It is much more convenient to compare sets in their roster forms than set-builder forms. Let's have a closer look at equal sets through some examples. https://cdn.kastatic.org/ka-youtube-converted/vbW47B5WyFc.mp4/vbW47B5WyFc.mp4 416 समुच्चय और उनका निरूपण (Sets and their representations) https://hi.khanacademy.org/math/class-12-bridge/x09646558c1ff0797:set-theory/x09646558c1ff0797:set/e/roster-form-and-set-builder-form 2025-12-22T09:04:18.606529448Z रोस्टर/सारणीबद्ध रूप (Roster/tabular form) और समुच्चय निर्माण रूप (set-builder form) रोस्टर रूप (Roster form) से समुच्चय निर्माण रूप (set-builder form) और समुच्चय निर्माण रूप (set-builder form) से रोस्टर रूप (Roster form) में परिवर्तित करना| srijan exercise https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:sets-ncert-new/x808831787a7b08a2:sets-and-their-representations/e/empty-finite-and-equal-sets 2026-03-10T08:56:38.975766859Z रिक्त (Empty), परिमित (finite) एवं समान समुच्चय (equal sets) यह अभ्यास समुच्चयों के प्रकारों के बारे में ज्ञान का परीक्षण करता है, चाहे समुच्चय रिक्त या आरिक्त हों, परिमित या अपरिमित समुच्चय हों या समान या असमान समुच्चय हों। Devashish Phadnis exercise