Mathematics (AS & A Level) · May / June 2026 · Paper 31 · Question 4
9709
As printed in the paper
The question as text
The square roots of i 71 20 3 - -` j can be expressed in the Cartesian form i x y + , where x and y are real and exact. By first forming a quartic equation, find the square roots of i 71 20 3 - -` j . Give your answer in exact Cartesian form. [5]
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.