“Calculate the lengths of the 2 unlabeled sides”
1 answer:
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2 - 3i is just another of writing (2, -3) in the cartesian plane, the 2-3i however is using the "imaginary axis" for the imaginary plane, is all however the imaginary axis is simply the equivalent of the y-axis. Likewise 9+21i is just (9,21), so let's just use the distance formula.
Ok so these are the first 3 hope its clear
