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Вопрос по математике:
Найдите пятый член бесконечно убывающей геометрической прогрессии 3; - 1; 1/3-
Автор:
emery74
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Ответ:
1/27
Пошаговое объяснение:
В этом задании 5 член легче найти так: найдем знаменатель q=в2:в2= -1:3= -1/3, тогда в4= в3*q=-1/9; далее в5=в4*q=1/27.
Можно воспользоваться формулой n -го члена, в5=в1*q^4= 3 * 1/81=1/27
Еще 4 ненужных тебе вопроса, но это важно для поиска
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Найдите английские эквиваленты следующих слов.
1.Населенный
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3.Обширный
4.Скалистый
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Some Facts About the UK The United Kingdom of Great Britain and Northern Ireland with an area of 244,000 square miles is situated in the British isles , which are separated from the European continent by the North Sea , the Straits of Dover and the English Channel. In consists of four parts-England,Scotland,Wales and Northern Ireland. The population of the Uk is over 62 million.Four out of five people live in towns. The largest cities in the country are London,Birmingham,Liverpool,Manchester,Glasgow and Edinburgh, Nevertheless ,agriculture is also well-developed, especially sheep-breeding in Scotland. The territory of the country is small but it has a wide variety of landscape and scenery.There are moors,rivers,lakes,mountains,hills and plains there. Politically the UK is a monarchy: the head of the state is a King or a Queen. In practice the Sovereign reins, but does not rule: Great Britain is governed by the Government . The present Sovereign is Queen Elizabeth 2. The real ruler of the country is the Prime Minister representing the party in power. The heart of the UK is England.It is the richest, the most fertile and most populated in the country.The north and the west of the England are mountainous, but all the rest territory is a vast plain. In Northwest England there are many beautiful lakes with green,The north and the west of the England are mountainous, but all the rest territory is a vast plain. In Northwest England there are many beautiful lakes with The north and the west of the England are mountainous, but all the rest territory is a vast plain. The north and the west of the England are mountainous, but all the rest territory is a vast plain. In Northwest England there are many beautiful lakes with green,wooded or grassy shores and grey mountains all around. The smallest country is Wales. The largest part of Wales is covered with rocky mountains,which are difficult to climb. Most people in Wales live in the coastal plains. Scotland is a land of mountains, wild moorlands , narrow valleys and plains, famous lakes,known as lochs and no end of large and small island. The Highlands of Scotland are among the oldest mountains in the world. One third of the people in Scotland live in or near its capital, Edinburgh, and its great industrial centre, Glasgow. Northern Ireland became a part of the United Kingdom in 1920.The land is mountainous and has few natural resouroes. Farming , machinery and equipment manufacturing,food prosseng,textile and electronics manufacturing are the leading industries.Bealfast is the capital and the largest city.-
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