1 votes 1 votes Why 2n is added as n-1 & n-2 functions has been called Algorithms recursion time-complexity + – twin_123 asked Nov 19, 2018 • retagged Jun 13, 2022 by makhdoom ghaya twin_123 382 views answer comment Share Follow See all 6 Comments See all 6 6 Comments reply Show 3 previous comments Mayankprakash commented Nov 19, 2018 reply Follow Share Oh yea got it!!.. If it was time complexity then it would 1 instead of 2n ? 0 votes 0 votes Shaik Masthan commented Nov 19, 2018 reply Follow Share yes brother ! 1 votes 1 votes Mayankprakash commented Nov 19, 2018 reply Follow Share @shaik Thanks bro 0 votes 0 votes Please log in or register to add a comment.