Explanation : Leonhard Euler was one of the most prolific mathematicians in history, publishing over 800 papers throughout his lifetime. He revolutionized mathematics by creating much of the notation we use today, including e, i, f(x), and the summation symbol. His most famous contribution is Euler's identity, e^ (int) 1 = 0, often called the most beautiful equation in mathematics as it connects five fundamental constants. He also made groundbreaking work in calculus, number theory, graph theory

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Ronaldo Rewards 15 Years of Loyalty ❤️🚗 Cristiano Ronaldo surprises his barber of 15 years with a brand new Lamborghini! 🚗✨ This heartwarming story proves that loyalty creates royalty. Even after becoming the most famous footballer in the world, CR7 never forgot the man who cut his hair for €50. Respect! ❤️ Follot for more amazing stories! ⚽👇 #CristianoRonaldo #Ronaldo #CR7 #fyp #Loyalty

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