Let S_K \frac{1+2+. . .+K}{K} and \sum_{{ {\j}=1}}^{{ {\n}}} {\S}_{ {\j}}^2= { {\n}}/{ {\A}} ( {\Bn}^2+ {\Cn}+ {\D}), where {\A}, {\B}, {\C}, {\D} \in {\N} and A has least value. Then [8-Apr-2023 shift 1]

Correct Answer is : A+B is divisible by D

{\A}+ {\B} is divisible by {\D}

{\A}+ {\C}+ {\D} is not divisible by {\B}

{\A}+ {\B}+ {\D} is divisible by 5

Sequences and Series Part 2

Section: Mathematics

Question : 4 of 100

Marks: +1, -0

Let SK‌

1+2+...+K

and

∑

j=1

Sj2=‌

(Bn2+Cn+D), where A,B,C,D∈N and A has least value. Then

[8-Apr-2023 shift 1]

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