Which of the following is equivalent to i^3, where i is the imaginary number?
a. -1
b. 0
c. 1
d. square root of -1
e. square root of -1^2
i^3 = i^2 * i
= (-1)i
= ?
a. -1
b. 0
c. 1
d. square root of -1
e. square root of -1^2
= (-1)i
= ?