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Which of the following list of numbers form an AP?
(i) 4, 10, 16, 22, . . . is
(ii) 1, – 1, – 3, – 5, . . . is
(iii) – 2, 2, – 2, 2, – 2, . . . is
(iv) 1, 1, 1, 2, 2, 2, 3, 3, 3, . . . is
Answer variants:
not an Arithmetic progression
an Arithmetic progression
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