Answer:
B) y ≥ 15
Step-by-step explanation:
cos ^-1(0)=(2n+1) π/2
where n is an integer.
if 0 ≤α ≤2 π
n=0,1
cos ^-1(0)=π/2,3π/2
Answer: x= -2
Here you go!
$6
78/13=6
