TS EAMCET · Maths · Sequences and Series
For any
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Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Sn=12.5+15.8+…+1(3n-1)(3n+2), n∈ℕ Tn=13n-13n+2 ⇒Tn=1313n-1-13n+2 ∴T1=1312-15 T2=1315-18 ⋮⋮⋮ ⋮⋮⋮ Tn=1313n-1-13n+2…
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