0 0 votes Set Theory & Algebra functions + – Lakshman Bhaiya 613 views answer comment Share Follow Print See all 3 Comments 3 3 Comments reply vijay_jr commented Dec 27, 2017 reply Follow flag is it 144? 0 0 replyShare Lakshman Bhaiya commented Dec 27, 2017 reply Follow flag yes, but how to solve? 0 0 replyShare vijay_jr commented Dec 27, 2017 reply Follow flag First, calculate $g^{9}(x)$ =x+1+1+...9 times = x+9 and $h^{8}(g(x))$= x+9+9+......8 times = x+72. Now put x=72, you will get 144 0 0 replyShare Please log in or register to add a comment.