Mathematics (AS & A Level) · May / June 2026 · Paper 33 · Question 7
9709
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The square roots of 3 20 7 i -` j can be expressed in the Cartesian form x yi + , where x and y are real and exact. By first forming a quartic equation, find the square roots of 3 20 7 i -` j . Give your answer in exact Cartesian form. [5]
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