https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:relations-and-functions-ncert-new/x808831787a7b08a2:untitled-1239/v/sum-of-functions 2020-11-13T07:10:02Z फलनों का योग करना (Adding functions) Given that f(x)=9-x^2 and g(x)=5x^2+2x+1, Sal finds (f+g)(x). Sal Khan video https://cdn.kastatic.org/googleusercontent/vQo4H2MOShkJUwO2-h3Bj6ZvskipyaGS2sDl8f9RQSlUzaUiSg1HAaJGpn2r5qK_MFGruIxMkek26UyuWUfDQJXXDQ फलनों का योग करना (Adding functions) Given that f(x)=9-x^2 and g(x)=5x^2+2x+1, Sal finds (f+g)(x). https://cdn.kastatic.org/ka-youtube-converted/-KXGjwdY9UU.mp4/-KXGjwdY9UU.mp4 153 वास्तविक फलनों का बीजगणित (Algebra of real functions) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:relations-and-functions-ncert-new/x808831787a7b08a2:untitled-1239/v/difference-of-functions 2025-02-03T14:16:00.002891013Z फलनों को घटाना (Subtracting functions) Given that f(x)=2x√5-4 and g(x)=x^2+2x√5-1, Sal finds (g-f)(x). Sal Khan video https://cdn.kastatic.org/googleusercontent/xl5HyNwZdnhKN5mhN2CIDDn3bMEV0T0scv9BRIbN5KBHYDmda4ERpzjR4OitpkO96VWeTcymCUeXgjT5RZ8XV2XG फलनों को घटाना (Subtracting functions) Given that f(x)=2x√5-4 and g(x)=x^2+2x√5-1, Sal finds (g-f)(x). https://cdn.kastatic.org/ka-youtube-converted/4rdT2G4Y3jY.mp4/4rdT2G4Y3jY.mp4 136 वास्तविक फलनों का बीजगणित (Algebra of real functions) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:relations-and-functions-ncert-new/x808831787a7b08a2:untitled-1239/v/product-of-functions 2020-11-13T07:10:02Z फलनों का गुणन करना (Multiplying functions) Sal solves the following problem: given that f(x)=7x-5 and g(x)=x^3+4x, find (f*g)(x). He explains that generally, (f*g)(x)=f(x)*g(x). Sal Khan video https://cdn.kastatic.org/googleusercontent/xKaLOaIfWxXnd1Z2TGBedcxXMuYJlrjbh1O9Dq_DS0VwjrP6X0C8UfVOk-4EUlaP0bQlKB5cRsP4QgPNUCKDNhP7 फलनों का गुणन करना (Multiplying functions) Sal solves the following problem: given that f(x)=7x-5 and g(x)=x^3+4x, find (f*g)(x). He explains that generally, (f*g)(x)=f(x)*g(x). https://cdn.kastatic.org/ka-youtube-converted/PGgb8EJqkqw.mp4/PGgb8EJqkqw.mp4 180 वास्तविक फलनों का बीजगणित (Algebra of real functions) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:relations-and-functions-ncert-new/x808831787a7b08a2:untitled-1239/v/quotient-of-functions 2020-11-13T07:10:02Z फलनों को विभाजित करना (Dividing functions) Sal solves the following problem: given that f(x)=2x^2+15x-8 and g(x)=x^2+10x+16, find (f/g)(x). He explains that generally, (f/g)(x)=f(x)/g(x). Sal Khan video https://cdn.kastatic.org/googleusercontent/LQhm8DE94i6gbuh6j4QkFQqISyUHwm__xaq5lZrD0uKKZ5HkryZQkfbRJHqZlHLF4gBgiupsp3c-1Dye81jxnt9- फलनों को विभाजित करना (Dividing functions) Sal solves the following problem: given that f(x)=2x^2+15x-8 and g(x)=x^2+10x+16, find (f/g)(x). He explains that generally, (f/g)(x)=f(x)/g(x). https://cdn.kastatic.org/ka-youtube-converted/bUwUDbWBiWg.mp4/bUwUDbWBiWg.mp4 378 वास्तविक फलनों का बीजगणित (Algebra of real functions) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:relations-and-functions-ncert-new/x808831787a7b08a2:untitled-1239/e/match-inputs-to-outputs-from-a-graph 2026-04-08T08:46:38.570038857Z फलन इनपुट (input) और आउटपुट (output): आलेख (graph) फलन के आलेख (graph) का उपयोग कर, दिए गए आउटपुट (output) के लिए सभी संगत इनपुट (input) ज्ञात करें। Tomer Gal exercise https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:relations-and-functions-ncert-new/x808831787a7b08a2:untitled-1239/v/different-inputs-giving-same-value-for-function 2021-01-22T04:30:34Z उदाहरण : समान आउटपुट वाले दो इनपुट (आलेख) [Worked example: two inputs with the same output (graph)] Sal finds the input value other than -5 for which f(x)=f(-5), given the graph of f. video https://cdn.kastatic.org/googleusercontent/T9LS6JQUy_PBE6C53by--XCd1rUoo_Pz9PjxNKZ_e6ajw46YGN7ddiigWDIbk_cgr6OWA50xSkyGDr18pMQ_6BIZ उदाहरण : समान आउटपुट वाले दो इनपुट (आलेख) [Worked example: two inputs with the same output (graph)] Sal finds the input value other than -5 for which f(x)=f(-5), given the graph of f. https://cdn.kastatic.org/ka-youtube-converted/dIYYWMs66RE.mp4/dIYYWMs66RE.mp4 108 वास्तविक फलनों का बीजगणित (Algebra of real functions) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:relations-and-functions-ncert-new/x808831787a7b08a2:untitled-1239/v/finding-input-given-function-output-formula 2021-01-22T04:30:34Z उदाहरण : किसी फलन के आउटपुट से इनपुट का मिलान करना (समीकरण) [Worked example: matching an input to a function's output (equation)] Sal finds the input value for which f(t)=13, given that f(t)=-2t+5. video https://cdn.kastatic.org/googleusercontent/JlJoN6LFEZi-W_mdBLaiL4xij78NQhAsoFU5tLK680GG1i2oZEAiTv7j18Zivy8xlegoVTkMm5Y5Cz_CzxEyQl_N उदाहरण : किसी फलन के आउटपुट से इनपुट का मिलान करना (समीकरण) [Worked example: matching an input to a function's output (equation)] Sal finds the input value for which f(t)=13, given that f(t)=-2t+5. https://cdn.kastatic.org/ka-youtube-converted/-97atVRRm8I.mp4/-97atVRRm8I.mp4 100 वास्तविक फलनों का बीजगणित (Algebra of real functions) https://hi.khanacademy.org/math/up-math-class-11/x808831787a7b08a2:relations-and-functions-ncert-new/x808831787a7b08a2:untitled-1239/e/functions_matching_inputs_outputs 2026-04-08T08:46:38.570038857Z फलन इनपुट (input) और आउटपुट (output): समीकरण (equation) फलन के सूत्र (formula) का उपयोग कर, दिए गए आउटपुट (output) के लिए सभी संगत इनपुट (input) ज्ञात करें। Tomer Gal exercise