Imagine this!
It's amazing what you can do when you go beyond the Real world...
Vanishing Roots Age 14 to 18
If $y=x^2-6x+c$, and we vary $c$, what happens to the roots when $c>9$?
Opening the Door Age 14 to 18
Challenge Level
Challenge Level
What happens when we add together two complex numbers?
Strolling Along Age 14 to 18
Challenge Level
Challenge Level
What happens when we multiply a complex number by a real or an imaginary number?
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.