# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2014 | Oct-Nov | (P2-9709/21) | Q#7

Question The angle lies between and and is such that i. Show that and hence find the exact value of . ii. It is given that the angleis such that . Without using a calculator, find the exact value of . Solution i. We are given; We know that; Hence; […]