# 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#5

Hits: 9 Question Solve the equation for . Solution We are given the equation; Since , therefore; Now we have two options. If we utilize the odd/even property of and to find other solutions (roots), then these solutions will lie outside desired range .