Answer:
11 is the common difference of the given sequence.
Step-by-step explanation:
Here the given sequence is
Terms 1 2 3 4
Sequence -12 -1 10 21
Now we know the arithmetic sequence is -12, -1, 10, 21.........n terms
common difference of an arithmetic sequence is represented as difference of nth term and (n-1)th term.
Therefore common difference d = -1 - (-12) = -1 +12 = 11
common difference 11 is the right answer.
