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The green, leaf-shaped area below is the region of overlap between two circles of radius that are centered, respectively, at the two opposite corners of the square. What is the area of this green region?

Fermats last theorem was a riddle that confounded the world’s greatest mathematician for 358 years. Fermat was a Frenchman and one of the greatest mathematician in the sixteenth century . He observed that when you consider three numbers say a,b,c. Then we can easily find a, b and c such that

( Example a = 3, b =2 and c=5)

Similarly, we can find a, b, c such that

( Example a = 3, b = 4 and c = 5)

Fermat’s audacious claim was that there is no a , b and c which will satify

or .... higher terms.

But what makes the story interesting is that in one of his notebooks, Fermat claimed that he had found a beautiful proof of this theorem and because of the lack of space in the margins, he cannot show it. This came to be known as Fermat’s last theorem as it was not proved for over 300 years despite relentless efforts by mathematician to either show it to be a correct assertion or an incorrect one. Even a middle school mathematics student can understand the theorem and that is the beauty of it.

However, a British mathematician Andrew Wiles who was then a professor of Mathematics at Princeton university quietly started working on the problem. He worked at it for eight years and after many trials and tribulation was able to prove that the Fermat’s Last theorem was correct in May 1996. However, to prove the theorem he used many complex mathematical ideas of the modern times which were not even discovered when Fermat stated the theorem. So the lingering question remains – Did Fermat really have a proof ? If you believe so, can you find it!