- #1
CheesyPeeps
- 36
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Homework Statement
I've used z* to mean z conjugate.
Given the equation z + 2iz* = 8 + 7i, express z in the form a + ib.
From SQA Advanced Higher Mathematics 2005 Exam Paper
Homework Equations
n/a
The Attempt at a Solution
I substituted a+ib and its conjugate in for z and z*, which, after some rearranging, gave me z =-3-15i.
I am not sure if that's the correct answer, and I'm a bit suspicious of how straightforward that method was. The question is worth 4 marks, which seems an awful lot for not much work. Have I missed something?