The first five terms of a linear sequence are
9,3,−3,−9,−15 9, 3, -3, -9, -15 9,3,−3,−9,−15Find an expression, in terms of nnn, for the n n\,nth term of this sequence.
208 exam-style questions on OCR GCSE Maths Sequences (Nth Term). Each one has a worked solution and a mark scheme showing where the marks go.