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Find the ap of 1st 8 multiple of 3

Posted by Aditya Ujjwal 5 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Sarita S 7 years, 1 month ago

3,6... a=3 ,d=3,n=8 =a+(n-1)×d =3+(8-1)×3 =3+7×3 =3+21 =24 T8=24 3,6,9,12,15,18,21,24

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Abhishek Varma 7 years, 1 month ago

1st 8 multiples of 3 are- 3,6,9,12,15,18,21,24. Here, a=3 d=3 an=24 n=8(using an formula) Sn=112(using Sn formula).

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