Question

# The 4th roots of unity in the argand plane form a

A
Square
B
Rectangle
C
Parallelogram
D
Rhombus

Solution

## The correct option is A SquareThe fourth roots of unity are $$1,i,-1, -i$$. Hence, they form a square in the Argand plane. We can see that by plotting the points on the graph with coordinate system according to that of complex numbers.Maths

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