Предмет: Алгебра, автор: svuatouvalentin

Найдите суму прогрессии
(n - натуральное число)

2+4+8+...+2^n ​

Ответы

Автор ответа: Alpha321
1

Сумма первых n членов геометрической прогрессии.

\frac{b^nq-b_1}{q}

Подставим значения

2^{(n+1)}-2

Ответ: 2^{(n+1)}-2

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So, you are students of South-Russia State
Technical University. Our congratulations!
You passed your entrance examinations
successfully and entered one of the best
and biggest Universities of our country.
The academic year consists of two terms:
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The students study hard and have no free
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many others.
Highly-qualified lecturers and professors
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equipped laboratories and workshops are
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concerts, dance performances, exhibitions,
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sports grounds and a swimming pool.
SRSTU is recognised as one of the most
successful universities in the south of our
country in sporting competitions. There are
European and world champions among the
students of our University.


1.What university did you enter?
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4.What do seminars give?
5.What do laboratory classes provide?
6.What subjects do the students study?
7.What student activities are there at the university?
8.What can you tell about sport activities at the university?
9.Do you go in for sports?
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