Krishna
0

Step 1: Verify that you are starting with an arithmetic sequence or not.


Step 2: Add the common difference to the term before the space. If it is in arithmetic sequence

[NOTE: Then Common difference = Succeeding(a+2d) - Preceding(a+d) term = d]

      or

Step 3: Subtract the common difference from the term following the space.


Step 4: Compare your results.