Question

For a sequence tn If Sn = n2 n+1 then find the first three terms of tn

Answer 1

hey buddy,.......this is ur ans 2,10,18
hope so this will help u a bit
thnx fr ur ques

Answer 2

Answer:

Required three terms are 2, 10 and 26

Step-by-step explanation:

$Given\\S_{n}=n^{2}(n+1)$

$First \: term(t_{1})=S_{1}=1^{2}(1+1)\\=1\times 2\\=2$

$t_{2}=S_{2}-S_{1}\\=2^{2}(2+1)-2\\=4\times 3- 2\\=12-2\\=10$

$t_{3}=S_{3}-S_{2}\\=3^{2}(3+1)-10\\=9\times 4-10\\=36-10\\=26$

Therefore,

Required three terms are 2, 10 and 26

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