# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2018 | May-Jun | (P1-9709/12) | Q#5

Hits: 139 Question The diagram shows a three-dimensional shape. The base OAB is a horizontal triangle in which angle AOB is 90o. The side OBCD is a rectangle and the side OAD lies in a vertical plane. Unit vectors and are parallel to OA and OB respectively and the unit vector is vertical. The position […]