These Ten-Year-Series (TYS) worked solutions with video explanations for 2005 A Level H2 Mathematics Paper 2 Question 1 are suggested by Mr Gan. For any comments or suggestions please contact us at support@timganmath.edu.sg.
2005 A Level H2 Math Paper 2 Question 1
Verify that $z=\text{i}$ is a root of the equation
${{z}^{4}}-2{{z}^{3}}+6{{z}^{2}}-2z+5=0$.
[1]
Hence determine the other roots.
[4]
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