17) Find the sum : S =| || |--+. upton terms. – InterviewSolution

1.

17) Find the sum : S =| || |--+. upton terms.

Answer»

S=1-1/n+1-2/n+1-3/n....up to n =(1+1+1... up to n)-1/n(1+2+3+...up to n) =n-(1/n)*(n*(n+1)/2) =n-((n+1)/2) =n-n/2-1/2 =n/2-1/2

plz give me correct answer

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