Math, asked by gurucharan5288, 11 months ago

The sum of 19 term of AP 5,9,13,___will be

Answers

Answered by riyaparishukla215

0

Answer:

77 last term in ap likes plz

Attachments:

Answered by shankarganiger228

0

Answer:

Explanation :

a=5 d=4 n=? sn=19

sn=n/2[2a+(n_1)d]

19=n/2[2×5+(n_1)4]

19=n/2[10+4n_4]

19×2=n[10+4n_4]

38=6n+4n2

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