Question

whats an arithmetic sequence? so like for

State whether the following sequences are arithmetic; and if so, state the common difference.
1.8, 3.6, 5.4, 7.2, ...



not arithmetic

8

1.8

-1.6

Answer 1

This seems like an arithmetic sequence, as we are adding 1.8 again and again.
Common difference is the number we're adding, which, as I said, is 1.8

Answer 2

1.8

Answer 3

Arithmetic Sequence is a sequence having same gaps between the terms..

Difference of second and first term = Difference of Third and Second Sequence...

Answer 4

An arithmetic sequence is a sequence with the difference between two consecutive terms constant. The difference is called the common difference.

Answer 5

the terms are of the type:a,a+d,a+2d,a+3d,.......

Answer 6

See, 3.6 - 1.8 = 1.8
5.4 - 3.6 = 1.8

This difference which is same is called COMMON DIFFERENCE..

Here, d= 1.8


In an Arithmetic Progression, you can get the second term, if you add COMMON DIFFERENCE in the previous term..

So, as the difference between two consecutive terms is same,

So, It is an Arithmetic Progression with a Common Difference of 1.8....