These Ten-Year-Series (TYS) worked solutions with video explanations for 2016 A Level H2 Mathematics Paper 1 Question 7 are suggested by Mr Gan. For any comments or suggestions please contact us at support@timganmath.edu.sg.
2016 A Level H2 Math Paper 1 Question 7
(a)
Verify that $-1+5\mathbf{i}$ is a root of the equation ${{w}^{2}}+\left( -1-8\mathbf{i} \right)w+\left( -17+7\mathbf{i} \right)=0$. Hence, or otherwise, find the second root of the equation in Cartesian form, $p+\mathbf{i}q$, showing your working.
(a) Verify that $-1+5\mathbf{i}$ is a root of the equation ${{w}^{2}}+\left( -1-8\mathbf{i} \right)w+\left( -17+7\mathbf{i} \right)=0$. Hence, or otherwise, find the second root of the equation in Cartesian form, $p+\mathbf{i}q$, showing your working.
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