English, asked by cuteboy31, 1 year ago

first term of AP if its Sn = n^2 +2n is .......
plz tell the ans ​

Answers

Answered by rajkumar707
0

Answer:

Putting n = 1

We get the first term,

a1 = 1^2+2*1 = 1+2 =3

Answered by debashish02
1

Answer:

at n=1sn =3

at n=2sn=8

so first term is 3 .

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