1.  Find the first three terms of the sequence whose n t h terms are given below:-
1.  a n = 3 n 2 n - 1 2 n + 1 .

Dear Student,
Please find below the solution to the asked query:

an=3n2n-12n+1Put n=1 to get first terma1=3×11-121+1=3Put n=2 to get second terma2=3×42-122+1=1232×3=83Put n=3 to get third terma3=3×93-123+1=2752×4=2710

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Substitute n=1 and you will get first term.Then substitute n=2 and you will get 2nd term..After that substitute n=3 and you will get 3rd term.
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