Question

The common difference of ap 6 9 12 15
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Answer 1

PLEASE MARK AS BRAINLIEST. "a" is an abbreviation used for the first term of an A.P. now we use the letter"d" to represent the common difference. therefore the common difference of this AP is 3 and the first term is 6.

Answer 2

Answer:

a2-a1=common difference

9-6=3

so common difference (d) is 3