Sum of Terms of Arithmetic Sequences II

Submitted by vladimir.arzt on Fri, 03/01/2024 - 10:22

SubArea:

Project ID:

7500000006

Question:

Create matching triples consisting of an arithmetic sequence, its

7

th term, and the sum of the first ten terms of the sequence.

Header 1:

Arithmetic sequence

(a_{n})_{n = 1}^{\infty}

with common difference

d

Header 2:

7

th term

Header 3:

Sum of the first ten terms

Text 11:

(2 + n)_{n = 1}^{\infty}

Text 21:

9

Text 31:

75

Text 12:

(2 n - 10)_{n = 1}^{\infty}

Text 22:

4

Text 32:

10

Text 13:

a_{1} = - 7; d = 3

Text 23:

11

Text 33:

65

Text 14:

a_{1} = 3.5; d = - 2

Text 24:

- 8.5

Text 34:

- 55

Text 15:

a_{1} = 5; a_{2} = 4.5

Text 25:

2

Text 35:

27.5

Text 16:

a_{1} = - 3; a_{5} = 1

Text 26:

3

Text 36:

15

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