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Find the area of the shaded figure

Express result to the accuracy of 2 decimal.

Correct answers: 39

The first user who solved this task is Djordje Timotijevic.

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Richard Ewen Borcherds

Born 29 Nov 1959.British mathematician who won the Fields Medal in 1998 for his for his work in the fields of algebra and geometry, in particular for his proof of the so-called Moonshine conjecture. This conjecture had been formulated at the end of the '70s by the British mathematicians John Conway and Simon Norton and presents two mathematical structures in such an unexpected relationship that the experts gave it the name "Moonshine." In 1989, Borcherds was able to cast some more light on the mathematical background of this topic and to produce a proof for the conjecture. The Moonshine conjecture provides an interrelationship between the so-called "monster group" and elliptic functions.

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