(a) M1 Sign change (and is continuous) therefore a root A1 is between and [2] (b) or M1 A1 A1 [3] 5 marks Scheme Marks Question M1 7. (a) A1 [2] (b) M1 (Note: M1A1 [3] M1 (c) dM1 M1 (Note: A1
(a) M1 Sign change (and is continuous) therefore a root is between and A1 [2] or M1 (b) A1 A1 [3] 5 marks Question Scheme Marks 7. (a) M1 A1 [2] (b) M1 (Note: M1A1 [3] M1 (c) dM1 M1 (Note: A1