Progressions/Sequences/Series (CIE-P1-2008) Archives — O/A Level Solutions

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Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2008 | Oct-Nov | (P1-9709/01) | Q#3

Hits: 944 Question The first term of an arithmetic progression is 6 and the fifth term is 12. The progression has n terms  and the sum of all the terms is 90. Find the value of n. Solution From the given information, we can compile following data for Arithmetic Progression (A.P); Expression for the sum of  number of terms […]

Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2008 | May-Jun | (P1-9709/01) | Q#7

Hits: 1056 Question The first term of a geometric progression is 81 and the fourth term is 24. Find     i.       the common ratio of the progression,    ii.       the sum to infinity of the progression. The second and third terms of this geometric progression are the first and fourth terms respectively  of an arithmetic progression.   iii.       Find the sum of the first ten […]