Question 1

Sigma notation $\sum\limits_{i=1}^N i $is used to describe the Nth term of a sequence

Accepted Answer

Sigma notation is used to describe the sum of the first N terms: 1+2+3+...........+N

Answer

yes

Question 2

$\sum\limits_{i=10}^{15}  i =$

Accepted Answer

10+11+12+13+14+15 =75

Answer

10+11+12+13+14

Answer

11+12+13+14+15

Question 3

The sum $\sum\limits_{i=50}^{100}i $can be found with Gauss method

Accepted Answer

yes: write the series twice, second time in reverse order and add

Answer

no

Question 4

The sum $\sum\limits_{i=25}^{55}i$ can be found with Euclid method

Accepted Answer

NO

Answer

YES

Question 5

The sum of the series $\sum\limits_{i=10}^{20} 3^i$ can be found with Euclid method

Accepted Answer

Yes

Answer

No

Question 6

It is possible to use either Gauss method or Euclid method to find the sum of a given series

Accepted Answer

NO

Answer

Yes

Question 7

Euclid and Gauss found their methods to compute sums of series around the same time period

Accepted Answer

No

Answer

yes

Question 8

Find the sum of the series $\sum\limits_{i=200}^{250}i$ Hint: use Gauss method

Accepted Answer

11475

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