Question

the nth term of series whose sum to n term is 5n^2+2^n
(a) 31- 10n
(b) 10n-2
(c) 10n- 3
(d) None of these
plzzz answer me fast step by step and don't copy from Google
write answer in own words ​

Answer 1

1. (a) 31-10n

is the answer brainlist me

Answer 2

Answer:

refer to attachments

$\mathcal{MY\:EXPECTATION\: FOR \:THIS \: ANSWER \:IS }10\:thanks\:and \:brainlist$

$\mathcal{BY \:ROSHAN\: A \:USER \: OF \: BRAINLY}$