Correct values for their and their B C, A1 which are found using [4] So, 4 1.0981 B1 4. (a) cao [1] B1; (b) M1 (3 dp) 2.843 or awrt 2.843 A1 [3] (c) or B1 M1 A1 Expands to give a “four term” in M1 u. Eg: An attempt to divide at M1 least three terms in their by See notes. cubic u. A1 = Applies limits of 3 and 2 in u or 4 and 1 in x M1 and subtracts either way Correct exact answer A1 or equivalent.
Correct values for their B and their C, which are found using A1 So, [4] 4 4. (a) 1.0981 B1 cao [1] (b) B1; M1 (3 dp) 2.843 or awrt 2.843 A1 [3] (c) or B1 M1 A1 Expands to give a “four term” in u. Eg: M1 An attempt to divide at least three terms in their cubic by u. See notes. M1 A1 = Applies limits of 3 and 2 in u or 4 and 1 in x and subtracts either way M1 Correct exact answer or equivalent. A1
c4_2014-2010markschemes.docx