if in an A.P.,sn is n²+n, find a2
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I hope this is correct and if it helped you please mark it brainliest
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Anonymous:
yea its correct
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S1 = 1+1 =2
S2= 4+2=6 Putting 2 in
a2=. S2-S2 = 4
S2= 4+2=6 Putting 2 in
a2=. S2-S2 = 4
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