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Mathematics

10th - 12th Grade

Used 11+ times

ARITHMETIC SERIES
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5 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

An expression denoting the sum of the terms of an arithmetic sequence.

Arithmetic Mean

Arithmetic Series

Geometric Sequence

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which of the following are used to solve arithmetic series?

 an= a1+(n−1)da_n=\ a_1+\left(n-1\right)d  

 Sn=n2(a1+an)S_n=\frac{n}{2}\left(a_1+a_n\right)  

 Sn=n2[2a1+(n−1)d]S_n=\frac{n}{2}\left[2a_1+\left(n-1\right)d\right]  

3.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

Simplify: 3+10+17+24+31+38+45

(a)  

4.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

Find the sum of the first 12 terms of the arithmetic sequence 2, 5, 8,...

(a)  

5.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

A pile of soft drink bottle caps has 1 cap on the top layer, 2 caps on the next layer, 3 caps on the next layer, and so on. How many caps are there in the pile if it contains 26 layers?

(a)  

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