Exercise 2a & 2b (FMA students only)

Dear FMA students,
I don't know why I can't put 2a above 2b, but I guess it doesn't matter. This is the exercise given by Mrs Koh today. If the uploaded image is blur or unreadable, please do access to bb7 and get it from there as it is much clearer. Thanks lot. :)

Faststronghorse