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Yes. Also, for finding any other root (cubic root, fourth root, etc.).

The main square root of a complex number can be found easily if it is expressed in polar notation. For example: the square root of 5 at an angle of 46 degrees) the complex number that has the absolute value 5 and an angle of 46 degrees) is equal to the square root of 5, at an angle of 46/2 = 23 degrees.

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Q: Are complex numbers closed for finding the square root of a number?
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