# 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#11

Question The function is defined for . It is given that has a minimum value when and that . (i) Find . It is now given that , and are the first three terms respectively of an arithmetic progression. (ii) Find the value of . (iii) Find , and hence find the minimum value of . Solution […]