How do u ace this?? What are some things you can work on??
b4 all else u must have an aptitude for maths
make sure all yr fundamentals are learnt correctly. if necessary go thru yr yr 8, 9, 10 texts. learn to see things in patterns. master the multiplication tables (don't laugh: I've so many students (obviously not of the calibre of bos users) who could not say what 7 x 8 is etc (that's why one kept resorting to use of the quadratic formula for simple problems when simple factorisation wld have done . . why? because they find it hard to figure out quickly that 24 can be 1x24, 2x12, 3x8, 4x6 ... . Anyway I know ur not one of them. Acquaint yourself with the powers of 2 from -5 to 13 say, and the first few of 3,5,6,7 very helful in exercises on logs & indices)
anyway I've gone off in a tangent.
Edit: if u plan to do 4U as well, get hold of a copy of yr 1 university calculus text like G B Thomas & Finney, or J Stewart or whoever. It'll put a rocket under u.