# Solving a Complex Number Equation

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Solve the equation z^2= -1 using z=(x,y) and the basic definitions.

a. z=(0,2),(0,-2)

b. z=(1,0),(-1,0)

c. z=(4,0),(-1,0)

d. z=(0,1),(0,-1).

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#### Solution Preview

The correct answer is (d)

z = (0,1), (0,-1)

since, z^2 = ...

#### Solution Summary

The solution gives a clear, concise set of steps showing the calculations taken to find the solution to the multiple-choice complex number problem given by the asker.

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