Question

in an AP the sum of first n term is 3n²/2 +13n /2 .find its 2nd term.



plzzz solve as soon as possible
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Answer 1

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Answer 2

Answer:

1st term of the AP :

• 3×1 /2 + 13 ×1 /2
• 16 / 2
• 8

Sum of first two terms :

• (3 × 4 + 13 × 2)/2
• (12 + 26)/2
• 38/2
• 19

2nd term of the AP = 19 -8 = 11

Thats the answer mate .

hope it helps :)