Please help I will mark you as brainliest! Convert the following complex number into its polar representation:
-4

A. -4(cos pi/2 + i sin pi/2)
B. 4(cos pi + i sin pi)
C. 4(cos 3pi/2 + i sin 3pi/2)
D. -4(cos0 + i sin0)

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]