# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2004 | May-Jun | (P1-9709/01) | Q#9

Hits: 179 Question Relative to an origin , the position vectors of the points , , and are given by and where and are constants. Find i. the unit vector in the direction of , ii. the value of p for which angle , iii. the values of for which the length of is 7 units. Solution i. […]