Sequences and Series

Hong Kong

Stage 4 - Stage 5

How is the common difference of an arithmetic sequence obtained?

By choosing any term after the first and subtracting the preceding term from it.

A

By choosing any term after the first and adding the subsequent term to it.

B

By choosing any term after the first and dividing it by the preceding term.

C

By choosing any term after the first and adding the preceding term to it.

D

Easy

< 1min

Find the sum of the first $10$10 terms of the arithmetic sequence defined by $a=6$`a`=6 and $d=3$`d`=3.

Easy

2min

Find the sum of the first $10$10 terms of the arithmetic sequence defined by $a=-18$`a`=−18 and $d=4$`d`=4.

Easy

2min

Find the sum of the first $15$15 terms in the arithmetic sequence $2+6+10$2+6+10 $+$+ ...

Easy

2min

Sign up to access Practice Questions

Get full access to our content with a Mathspace account