# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2020 | Feb-Mar | (P1-9709/12) | Q#11

Question     i.      Solve the equation  for .   ii.      Find the set of values of  for which the equation has no solution.  iii.      For the equation , state the value of for which there are three solutions in the interval , and find these solutions. Solution i.   We have the equation; Let ; […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2020 | Feb-Mar | (P1-9709/12) | Q#9

Question a)Express in the form , where  and  are constants. The function f is defined by  for . b)Find an expression for and state the domain of . The function is defined by  for . c)For the case where k = −1, solve the equation . d)State the largest value of possible for the composition […]