Question

find the common difference of ap 15, 21,27 ...​

Answer 1

Answer:

The given sequence is 3, 9, 15, 21, 27, … It is an arithmetic progression so the common difference between all consecutive numbers is 6. Let a1 be the first term of the sequence and d be a common difference. Therefore, a1 = 3 and d = 6.

Answer 2

Answer:

d=a2-a1

d=21-15

d=6

The common difference is 6

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