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PLEASE HELP!!!
Which expression is equivalent to
35
∑n?
n=1

PLEASE HELP!!! Which expression is equivalent to 35 ∑n? n=1-example-1

2 Answers

10 votes

Answer:

Aon 3dg

Explanation:

PLEASE HELP!!! Which expression is equivalent to 35 ∑n? n=1-example-1
User Sizuji
by
7.0k points
4 votes

Answer:


(35\left( 1 + 35\right) )/(2)

Explanation:

a(n) = n is an arithmetic sequence with first term a₁ = 1 and common difference r = 1.

Here we have to calculate the sum of the first 35 consecutive terms of an arithmetic sequence.

Using the formula for the sum ,we get :


\sum^(q)_(n=p) a_(n)=\frac{\text{number of terms} * \left( \text{first term} +\text{last term} \right) }{2}

Therefore


\sum^(35)_(n=1) n=(35\left( 1 + 35\right) )/(2)

User Ellis Michael
by
6.7k points