(0) Анегда нia auft таң чт (а)
І В ? 3, 6, 9, 12, 15, 18, ..............
3
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4
Answers
Answered by
0
Answer:
Explanation:
Correct answer is
21
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@vansh
Answered by
0
Explanation:
6-3=3
d{=3
a=3
a+(n-1)3
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