Answer:
A: i
Step-by-step explanation:
i^57=i use the calculator
c) rad 3/2
If Cos 30° equals rad 3/2 then the sin 60° equals rad 3/2.
k < -5
5(k+4)<–5
Divide each side by 5
5/5(k+4)<–5/5
k+4 < -1
Subtract 4 from each side
k+4-4 < -1-4
