Answer:
Step-by-step explanation:
Answer:
n= 13
Step-by-step explanation:
.................
Car rate in mph: 30
How far in 5 hours: 15 miles
hope this helps
Π/12 is half of π/6, which is 30 degree
tan(α/2)=(1-cosα)/sinα)
plug in the values: tan(π/12)=(1-cosπ/6)/sin(π/6)=(1-√3/2)/(1/2)=2-√3