(11/n)+( 12/n)+(13/n)+…… Up To N Terms=? – InterviewSolution

1.

(11/n)+( 12/n)+(13/n)+…… Up To N Terms=?

Answer»

Given SUM=(1+1+1+…. to n TERMS)(1/n+2/n+3/n+…. to n terms)

= n(n(n+1)/2)/n

= n(n+1)/2=1/2(n1).

Given sum=(1+1+1+…. to n terms)(1/n+2/n+3/n+…. to n terms)

= n(n(n+1)/2)/n

= n(n+1)/2=1/2(n1).

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