tim2k09

26.12.2022 06:14

Английский язык

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Выпишите из текста предложения в present indefinite. напишите эти предложения в вопросительной и отрицательной форме. поставьте к этому предложению все типы вопросов: общий, специальный, разделительный, альтернативный, вопрос к подлежащему.n.i.lobachevsky is a great russian mathematician and the creator of non-euclidean geometry. he was born on december 1.1792 in nizhni novgorod in a poor family. when n.lobachevsky was a child, his father died and the family moved to kazan. there the boy learned at the "gymnasium" from 1802 to 1807 and in 1807 he entered kazan university. at the university n.i.lobachevsky spent the next forty years of his life as a student, professor and rector. lobachevsky became interested in mathematics when he was still a schoolboy and be remained true to this science all his life long. lobachevsky did a lot to make kazan university a first-rate educational institution of that the time. at the same time he made extensive researches into mathematics. on february 23, 1826 a great event took place at kazan university. n.i.lobachevsky presented a paper "a brief outline of the principles of geometry strictly demonstrating the theorem of parallel lines. that day a new geometrical system, the so-called non-euclidean geometry was born. in the paper he attacked the theory which was the basis of geometry for 2,000 years and made a real revolution in mathematics. in the years that followed lobachevsky wrote a number of works in the field of algebra and mathematical analysis. however, nearly nobody understood and recognized his works at that time. they were recognized only twelve years after his death. lobachevsky's ideas greatly influenced the development not only of geometry and other mathematical sciences, but also mechanics, physics and astronomy. one mathematician called lobachevsky "copernicus of geometry"