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16. domain  1,  range  3, 

3

0
1

17. (a) – Refer to Lecturer –
(b)

1

0 1

D  R  0, 
g
f
R  D    
,
g
f
 1  1
 2x  1 , x   7x  10 , x 


18. (a) f   x   2 h   x   2
  2x  1 , x  1   x  14 , x  1
  2   2