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Complex Numbers Question

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ice_blockie:
On an Argand diagram, is the origin and represents the point . The point represents , where and are both positive. If triangle is equilateral, find and.

I think you could find the polar form of and then add 60 degrees to the angle to get the coordinates for . But it doesnt seem to work. Help?

Collin Li:
To find , we must multiply the complex number by or



Therefore,





Multiplying by would result in negative values of and

gta007:
Coblin, you forgot to multiply by 1/2 in the end. lol

Collin Li:
LOL you're right. It is fixed now.

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