Question

Which of the following is an arithmetic sequence? 2, 4, 8, 16, ... -8, -6, -4, -2, ... -2, 4, -6, 8, .

Answer 1

2,4,6,8 is an arithmetic sequence because you are adding 2 but the second step it's the same but you are subtracting 2

Explanation:

The third one is so wrong.