In complex number loci and geometry, it is good to construct a fairly accurate Argand diagram, so that students can visualise correctly and also check their final answer against the measured dimension.

For example, in 2012 paper

If we use a compass and ruler we can construct the following:

Of course, we need to work out the exact answer using simple geometry. However, we can compare our final answers with the figure using a ruler and protractor.

So bring along your ruler, compass and protractor for Further maths exam 🙂

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