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What is Vieta jumping method?

Plzzz explain what is Vieta Jumping in easy words, and also with an example. I have searched it in wikipedia but did not get sufficient and easy explanation

Note by Siddharth Kumar
3 years, 4 months ago

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It is essentially a method of proof by contradiction, used in very difficult IMO problems, as if the normal IMO problems weren't difficult enough. It was first used in the 1998 IMO and you should read this excerpt about the problem it was used for

Nobody of the six members of the Australian problem committee could solve it. Two of the members were George Szekeres and his wife, both famous problem solvers and problem creators. Since it was a number theoretic problem it was sent to the four most renowned Australian number theorists. They were asked to work on it for six hours. None of them could solve it in this time. The problem committee submitted it to the jury of the XXIX IMO marked with a double asterisk, which meant a superhard problem, possibly too hard to pose. After a long discussion, the jury finally had the courage to choose it as the last problem of the competition. Eleven students gave perfect solutions.

No offence, but I'd work on other areas of number theory and leave Vieta alone · 3 years, 4 months ago

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i think it is an exerpt of the book problem solving strategies by arthur engel · 3 years, 4 months ago

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Google it.I've got a good article on it there by some Chinese bloke.......... · 3 years, 4 months ago

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