CBSE BOARD X, asked by Reaj8405, 1 year ago

If Sn is the sum of an A.P is 5n sq - 3n. Find the A.P then what is the n th term (an)

Answers

Answered by anuksh
1
putting n=1
5×(1) square -3(1)=2
putting n=2
5×(2) square-3(2),=14
putting n=3
45-9=38 there nth term is 38
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