If i2k = 1, and , which of the following must be true about k?
A. k is a multiple of 4.
B. k is a positive integer.
C. When 2k is divided by 4, the remainder is 1.
D. is an integer.
Answer:D
If i2k = 1, and , which of the following must be true about k?
A. k is a multiple of 4. B. k is a positive integer. C. When 2k is divided by 4, the remainder is 1. D. is an integer.
Explanation: D