Answer:
The answer should be d)
Explanation:
Take n =1 first, then a1 = 3*1 + 1 = 4, so a1 = 4, then take n = 2, get a2 = 3*2 + 1 = 7, and then n = 3, get a3 = 3*3 + 1 = 10, then you can find the patern here, which is an = an-1 + 3.
Yeah its A
Youre correct.
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