All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions.

(i)

We have that ,

Since does not exist.

(ii)

Let

### KS Comments:

A very standard question. The last part requires student to understand the relationship between a function and its inverse, instead of simply stating that they are a reflection about y=x.

2013 A-level H2 Mathematics (9740) Suggested Solutions | The Culture[…] Question 1 […]