n n\,n is an integer such that −3<2n<6-3 < 2n < 6−3<2n<6
Verify that −1,0,1,2-1, 0, 1, 2−1,0,1,2 are all the possible values of nnn.
156 exam-style questions on OCR GCSE Maths Inequalities. Each one has a worked solution and a mark scheme showing where the marks go.