MAT334--2020S > Quiz 1

TUT0301 Quiz1

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**Guan Zhaoqing**:

Question:

Write the equation of the circle through 0, 2+2i, and 2-2i.

Answer:

The circle pass through (0,0), (2,2), (2,-2)

So, the circle is centerd at (2,0) and has radius 2.

Thus, the equation would be: (x-2)^2 + y^2 = 4

In complex number notation: |z-2|=2, where z is complec number.

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