What is a circle group?
A. a subgroup complex numbers having magnitude 1 of the group of nonzero complex elements
B. a subgroup rational numbers having magnitude 2 of the group of real elements
C. a subgroup irrational numbers having magnitude 2 of the group of nonzero complex elements
D. a subgroup complex numbers having magnitude 1 of the group of whole numbers
Answer:A
What is a circle group?
A. a subgroup complex numbers having magnitude 1 of the group of nonzero complex elements B. a subgroup rational numbers having magnitude 2 of the group of real elements C. a subgroup irrational numbers having magnitude 2 of the group of nonzero complex elements D. a subgroup complex numbers having magnitude 1 of the group of whole numbers
Explanation: The set of complex numbers with magnitude 1 is a subgroup of the nonzero complex numbers associated with multiplication. It is called the circle group as its elements form the unit circle.