https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:irrational-numbers/x2f8bb11595b61c86:proofs-concerning-irrational-numbers/v/proof-that-square-root-of-2-is-irrational 2021-06-27T21:01:24Z Proof: √2 is irrational Sal proves that the square root of 2 is an irrational number, i.e. it cannot be given as the ratio of two integers. Sal Khan video https://cdn.kastatic.org/googleusercontent/7dTOCZj0K4IaBzSIrfUAZlnN8__3a1nbZiggkG_gbtmOAYhTw57l7N7hbKI8Ck9zMCX2I6k87HkO7tRKMIX627yC Proof: √2 is irrational Sal proves that the square root of 2 is an irrational number, i.e. it cannot be given as the ratio of two integers. https://cdn.kastatic.org/ka-youtube-converted/mX91_3GQqLY.mp4/mX91_3GQqLY.mp4 467 Demostraciones de irracionales https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:irrational-numbers/x2f8bb11595b61c86:proofs-concerning-irrational-numbers/v/proof-that-square-root-of-prime-number-is-irrational 2021-06-02T12:43:24Z Proof: square roots of prime numbers are irrational Sal proves that the square root of any prime number must be an irrational number. For example, because of this proof we can quickly determine that √3, √5, √7, or √11 are irrational numbers. Sal Khan video https://cdn.kastatic.org/googleusercontent/Qlbf1_iGb2Un5M6mSPOW1494XtoZLfJqngQh_VTwAlYVnOqUUYBIqhaxS7K_mIZpAHoiJhTHUNZkQM2Py694lYnu Proof: square roots of prime numbers are irrational Sal proves that the square root of any prime number must be an irrational number. For example, because of this proof we can quickly determine that √3, √5, √7, or √11 are irrational numbers. https://cdn.kastatic.org/ka-youtube-converted/W-Nio466Ek4.mp4/W-Nio466Ek4.mp4 448 Demostraciones de irracionales https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:irrational-numbers/x2f8bb11595b61c86:proofs-concerning-irrational-numbers/v/proof-that-there-is-an-irrational-number-between-any-two-rational-numbers 2020-12-28T16:56:57Z Proof: there's an irrational number between any two rational numbers Sal proves that when given any two rational numbers, no matter how close, we can find an irrational number that lies between them. Sal Khan video https://cdn.kastatic.org/googleusercontent/zgesp50kZjWKYym5GhzHevxw4vaIvgQWwyJRvLww44ADmoIPcCUQDL8lOWep0fQKlndmgTi442YtHDgsTHBljR8 Proof: there's an irrational number between any two rational numbers Sal proves that when given any two rational numbers, no matter how close, we can find an irrational number that lies between them. https://cdn.kastatic.org/ka-youtube-converted/hxqo_DiL3pw.mp4/hxqo_DiL3pw.mp4 333 Demostraciones de irracionales