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Calculate AxB

Determine the pattern of the subtraction, and calculate AxB.

Correct answers: 27

The first user who solved this task is Sanja Šabović.

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When the surgeon came to see Rita on the day after her operation, she asked him somewhat hesitantly just how long it would be before she could resume her sex life.

"Uh, I hadn't really thought about it" replied the stunned surgeon.

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Comte Claude Louis Berthollet

Born 9 Dec 1748; died 6 Nov 1822 at age 73.French chemist who was the first to note that the completeness of chemical reactions depends in part upon the masses of the reacting substances (1803); he thus came close to formulating the law of mass action. Though he incorrectly concluded that elements unite in all proportions, his resulting controversy with the chemist Joseph-Louis Proust led to the establishment of the law of definite proportions. He continued Carl Scheele's research on chlorine, showing in 1785 how it could be used for bleaching. He continued Joseph Priestley's investigation of ammonia, and was the first to show it was a compound of hydrogen and nitrogen. He discovered potassium chlorate.

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