How you calculate this? #int_1^ndx/(x+|__x__|)#

1 Answer
May 13, 2017

#int_1^ndx/(x+floor(x)) =log_e(prod_(k=1)^(n-1)(2k+1)/(2k))#

Explanation:

#int_1^ndx/(x+floor(x)) = sum_(k=1)^(n-1)int_k^(k+1)(dx)/(x+k) = sum_(k=1)^(n-1)log_e((2k+1)/(2k))#

or

#int_1^ndx/(x+floor(x)) =log_e(prod_(k=1)^(n-1)(2k+1)/(2k))#