Question

nth term of an ap is an =n2 +1 find ap and s30​

Answer 1

Answer:

nth term of an AP can't be quadratic. check the question

Answer 2

nswer:

3 & 1

Step-by-step explanation:

Sn = 4n - n^2

S1 = 4 - 1 = 3

so 1st term = 3

S2 = 8 - 4 = 4

so 2nd term = 4-3 = 1