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Link to prepare packs from zero to one hundred https://riaziateshirin.com/product-ca... You have probably heard that Archimedes, by enclosing and surrounding ninety-six sides around a circle, was able to obtain an interval for the number pi and calculate an estimate of this number, which for years was used in practical applications from the upper limit of this interval, namely the number twenty-two divided by seven. But in 1593, François Viet found the first exact expression for the numerical value of pi, which we discussed in this video???? Don't miss Viet's masterpiece at all???? If you like this model of challenging math questions, I suggest you definitely subscribe to the channel and activate the bell next to it so you don't miss the next videos Link to the Instagram page with more than 600 challenging problems⬇️ https://www.instagram.com/riaziateshi... Link to the Telegram channel⬇️ https://t.me/riaziateshirin_rahimi