Jones and Couchman. It's a fucking shit textbook with mistakes on every second page, even though its been revised like ten times already. The exercises are too easy and when the time comes for the HSC, you are never prepared. I know some people who use the yellow Fitzpatrick text and they say its the best. I personally prefer Coroneos.
hmm, I haven't heard of the textbooks that everyone else is using. Ive got Access to General Maths. It okay, except that dont have a lot of really hard questions they only have a couple at the end of each exercises.