In Complex Numbers today, we showed (directly) that multiplication by a complex number corresponds to scaling by its length and rotating by the angle it makes with the real axis. #MathsToday#ALevelMaths#UKMathsChat#ITeachMaths
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4. Afterwards, we re-examine their confidences to see if they were warranted. Sometimes, a B becomes an A part way through. Sometimes it becomes a C when they hit an unexpected snag. Of course, I might override these if I want to see more evidence. #MathsToday#UKMathsChat#ITeachMaths
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