Question

in an ap the first term is 2
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Answer 1

$\huge\bold\red{SOLUTION}$$\bold\purple{♡FollowMe♡}$

Hey mate your question is incomplete. but for you here are some points.

first term=a

difference =d

an = a+(n-1)d

Sn=(n/2)(2a +(n-1)d)

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HOPE IT HELPS...