# 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#7

Hits: 150 Question i. Show that ii. Hence, showing all necessary working, solve the equation For . Solution i. We are given the expression; We have the algebraic identity; We have the trigonometric identity; Since ; We can write; Therefore; ii. We are required […]