Question

question no. 59.. please help me.. .The one who answer good answer I will make him / her brainliest​

Answer 1

ans is n/2

By putting the value of n= 1

Answer 2

Answer:

B) is correct....

Step-by-step explanation:

[1-1/(n+1)]+ [1-2/(n+1)]+ _ _ _ _ [1-n/(n+1)]

=(1+1+1+1_____ up to n times)-1/(n+1) -2/(n+1)- _ _ _ -n/(n+1)

= n - [1/(n+1)][1+2+3+_ _ _ _ +n]

= n -[1/(n+1)][n(n+1)/2]

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

= n - n/2

= n/2