Let be the d shortest distance from to C l. (c) M1 Applies dot product formula between M1 and their Correct followed through expression A1 or equation. A1 cso awrt 109 AG [4] (d) M1 So, A1 [2] M1; dM1 (e) A1 [3] (f) or M1 awrt 3.54 A1 [2] (15 marks) Question Scheme Marks Number 8. (a) Can be implied. M1 Either one. A1
Let d be the shortest distance from C to l. (c) M1 Applies dot product formula between and their M1 Correct followed through expression or equation. A1 awrt 109 A1 cso AG [4] (d) M1 So, A1 [2] (e) M1; dM1 A1 [3] (f) or M1 awrt 3.54 A1 [2] (15 marks) Question Number Scheme Marks 8. (a) Can be implied. M1 Either one. A1
c4_2014-2010markschemes.docx