Question

what is the nth term of an ap whose sum of b terms is 2n2 - 3n​

Answer 1

Answer:

Sn=2n2+3n

We know that nth term of AP is given by

an=Sn−Sn−1

⟹an=2n2+3n−2(n−1)2−3(n−1)

⟹an=4n+1

Tenth term=a10=4×10+1

⟹a10=41

Answer 2

Answer:

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