1 votes 1 votes what if some recurrence relation is not solvable by master theorem we should apply 1)recursion method or 2)substitution mnethod which is easier and accurate e.g if s is replaced by 5 in following question solve Imarati Gupta asked Oct 20, 2016 Imarati Gupta 209 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.