9 grade maths
Questions 32 complete with a sollution required for the question
Questions 32 complete with a sollution required for the question
1 Answer
Arun
Dear Pushkar
A.M. of all numbers = [(1-1/n) + (1+ 1+1+1+.....n-1 times)] /n
= [(n-1 / n) + n-1 ]/n
= n² -1 /n² = 1 -(1/n²)
Hence arithmetic means is less than 1 by 1/n²
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