Mobius transformation, inverse operation, composition, identity, C1.
[STEP III 1996 Question 8 (Pure)]
Equation of lines, hyperbolic functions, necessary and sufficient.
[STEP III 1991 Question 6 (Pure)]
Vectors, matrices, eigenvectors, area, equation of tangent, circle.
[STEP III 1990 Question 6 (Pure)]
Linear transformation, matrix, necessary ans sufficient, commute.
[STEP III 1989 Question 7 (Pure)]
Underground Mathematics: Selected worked STEP questions
STEP Question database
University of Cambridge Mathematics Faculty: What do we look for?
University of Cambridge Mathematics Faculty: Information about STEP
University of Cambridge Admissions Office: Undergraduate course information for Mathematics
Stephen Siklos' "Advanced Problems in Mathematics" book (external link)
MEI: Worked solutions to STEP questions (external link)
OCR: Exam board information about STEP (external link)
AMSP (Advanced Maths Support programme): Support for University Admission Tests (external link)