a) Find all fourth roots of 1 in polar form.
b) Express them in Cartesian form.
c) Show how they can be expressed as powers of one fixed fourth root of 1.

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4th roots in polar form divide the unit circle into 4 equal parts.... so 90 degree seperations

since the any root of 1 = 1; im assuming they want (1,1) (1,-1) (-1,-1) (-1,1) as answers

isnt it x^4=1?

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