Hits: 14

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2019 | Oct-Nov | (P1-9709/11) | Q#10

Hits: 14 Question Relative to an origin O, the position vectors of points A, B, C and D, shown in the diagram, are given  by are given by and i.       Show that AB is perpendicular to BC. ii.       Show that ABCD is a trapezium. iii.       Find the area of ABCD, giving your answer correct to […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2019 | May-Jun | (P1-9709/13) | Q#6

Hits: 3 Question The diagram shows a solid figure ABCDEF in which the horizontal base ABC is a triangle right- angled at A. The lengths of AB and AC are 8 units and 4 units respectively and M is the mid-point of  AB. The point D is 7 units vertically above A. Triangle DEF lies […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2019 | May-Jun | (P1-9709/12) | Q#8

Hits: 112 Question The position vectors of points A and B, relative to an origin O, are given by and Where  is a constant. i.Find the value of  for which the angle AOB=90o. ii.Find the values of  for which the lengths of OA and OB are equal. The point C is such that . iii.In […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2019 | May-Jun | (P1-9709/11) | Q#7

Hits: 124 Question The diagram shows a three-dimensional shape in which the base OABC and the upper surface  DEFG are identical horizontal squares. The parallelograms OAED and CBFG both lie in vertical  planes. The point M is the mid-point of AF. Unit vectors  and  are parallel to OA and OC respectively and the unit vector […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2019 | Feb-Mar | (P1-9709/12) | Q#5

Hits: 182 Question Two vectors,  and , are such that and Where is a constant.     i.      Find the values of for which is perpendicular to .   ii.     Find the angle between  and when q = 0. Solution i.   We are given that; If  and & , then  and  are perpendicular. Therefore, if […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2018 | Oct-Nov | (P1-9709/13) | Q#6

Hits: 58 Question The diagram shows a solid figure OABCDEFG with a horizontal rectangular base OABC in which  OA = 8 units and AB = 6 units. The rectangle DEFG lies in a horizontal plane and is such that D is 7  units vertically above O and DE is parallel to OA. The sides DE […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2018 | Oct-Nov | (P1-9709/12) | Q#7

Hits: 232 Question The diagram shows a solid cylinder standing on a horizontal circular base with centre O and radius  4 units. Points A, B and C lie on the circumference of the base such that AB is a diameter and angle  BOC = 90o. Points P, Q and R lie on the upper surface […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2018 | Oct-Nov | (P1-9709/11) | Q#8

Hits: 151 Question The diagram shows a solid figure OABCDEF having a horizontal rectangular base OABC with OA =  6 units and AB = 3 units. The vertical edges OF, AD and BE have lengths 6 units, 4 units and 4  units respectively. Unit vectors ,  and  are parallel to ,   and   respectively.     i.      […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2018 | Feb-Mar | (P1-9709/12) | Q#8

Hits: 209 Question A curve has equation . i.Find the x-coordinates of the stationary points. ii.Find . iii.Find, showing all necessary working, the nature of each stationary point. Solution i. We are required to find the coordinates of the stationary point of the curve. Coordinates of stationary point on the curve can be found from […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2018 | Feb-Mar | (P1-9709/12) | Q#7

Hits: 206 Question Fig. 1 shows a rectangle with sides of 7 units and 3 units from which a triangular corner has been  removed, leaving a 5-sided polygon OABCD. The sides OA, AB, BC and DO have lengths of 7  units, 3 units, 3 units and 2 units respectively. Fig. 2 shows the polygon OABCD […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2018 | May-Jun | (P1-9709/13) | Q#9

Hits: 309 Question The diagram shows a pyramid OABCD with a horizontal rectangular base OABC.  The sides OA and AB have lengths of 8 units and 6 units respectively. The point E on  OB is such that OE = 2 units. The point D of the pyramid is 7 units vertically  above E. Unit vectors […]

# 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: 497 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 […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2018 | May-Jun | (P1-9709/11) | Q#7

Hits: 459 Question Relative to an origin O, the position vectors of points A, B and C are given by and                     i.       Find .                ii.       The point M is the mid-point of AC. Find the unit vector in the direction of  .                  iii.       Evaluate and hence […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2017 | Oct-Nov | (P1-9709/13) | Q#9

Hits: 1833 Question Relative to an origin O, the position vectors of points A, B and C are given by and A fourth point, D, is such that the magnitudes ,  and  are the first, second and third  terms respectively of a geometric progression.  i.       Find the magnitudes ,  and . ii.       Given that D is a point lying on […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2017 | Oct-Nov | (P1-9709/12) | Q#9

Hits: 1403   Question The diagram shows a trapezium OABC in which OA is parallel to CB. The position vectors of A and  B relative to the origin O are given by and                           i.       Show that angle OAB is 90o. The magnitude of  is three times the […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2017 | Oct-Nov | (P1-9709/11) | Q#8

Hits: 1328   Question a.   Relative to an origin O, the position vectors of two points P and Q are p and q respectively. The  point R is such that PQR is a straight line with Q the mid-point of PR. Find the position vector of R in  terms of p and q, simplifying your answer. b.   The vector […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2017 | May-Jun | (P1-9709/13) | Q#4

Hits: 849   Question Relative to an origin O, the position vectors of points A, B and C are given by and The point P lies on AB and is such that . i.       Find the position vector of P. ii.       Find the distance OP. iii.       Determine whether OP is perpendicular to AB. Justify your answer. Solution      i.   We are […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2017 | May-Jun | (P1-9709/12) | Q#8

Hits: 942   Question Relative to an origin , the position vectors of points A and B are given by and where p and q are constants.      i.       In the case where , use a scalar product to find angle AOB.    ii.       In the case where  is parallel to , find the values of p and q. Solution      i. […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2017 | Feb-Mar | (P1-9709/12) | Q#6

Hits: 811   Question Relative to an origin , the position vectors of points A and B are given by and i.       Use a scalar product to find angle OAB. ii.       Find the area of triangle OAB. Solution      i.   It is evident that angle OAB is between  and . We are given that; and Next, we need scalar/dot product of  and . […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2017 | May-Jun | (P1-9709/11) | Q#2

Hits: 972   Question Relative to an origin O, the position vectors of points A and B are given by and and angle AOB=90o. i.       Find the value of . The point C is such that .    ii.       Find the unit vector in the direction of . Solution      i.   It is evident that angle AOB is between  and . […]