I simply worked f(7-x) out and got the answer exactly described in (d). And x ≠ 19/3 and 0 ≤ x ≤ 7 seem appropriate too.
Now I wonder if there is any tricky thing in other areas. Would any fellow please take a look when you have time.
I simply worked f(7-x) out and got the answer exactly described in (d). And x ≠ 19/3 and 0 ≤ x ≤ 7 seem appropriate too.
Now I wonder if there is any tricky thing in other areas. Would any fellow please take a look when you have time.