Multiply complex numbers - official syllabus scenario
Read the official-HL feature being tested first. For a clinic log calculation, \(z_1=3+5i\) and \(z_2=5+1i\). Find the real part of \(z_1z_2\). Enter the requested value and choose the interpretation that matches the result.
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Worked practice: result and interpretation
Calculate the requested result first, then choose the interpretation that follows from it.