If |z| = 3, the area of the triangle whose vertices are z, wz and z + wz (where w is a complex cube root of unity) is
Question
If |z| = 3, the area of the triangle whose vertices are and (where is a complex cube root of unity) is
Solution
Sure, let's solve the problem step by step.
Step 1: Given that |z| = 3, we know that z lies on a circle with radius 3 centered at the origin.
Step 2: Let's find the complex cube root of unity, denoted as w. The cube roots of unity are 1, e^(2πi/3), and e^(4πi/3). So, w can be any of these three values.
Step 3: Now, we need to find the vertices of the triangle. The vertices are z, wz, and z + wz.
Step 4: Let's consider the first vertex, z. Since |z| = 3, z lies on the circle with radius 3 centered at the origin.
Step 5: For the second vertex, wz, we multiply z by w. This gives us a new complex number, which we can represent as r*e^(iθ), where r is the magnitude and θ is the argument.
Step 6: Finally, for the third vertex, z + wz, we add z and wz together.
Step 7: Once we have the three vertices, we can calculate the area of the triangle using the formula for the area of a triangle in the complex plane.
I hope this helps! Let me know if you have any further questions.
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