All you have to do is plug in the 2 for x which gives you 8 as the answer
Not direct answer but
this is how I think
radius = 4 so AC is also 4
You can find with this
2π ( 4 ) ( 51°/360°) = Answer
Actually I am lazy to calculate (◔‿◔)
Answer:
a and b are relative on maxima interval x =-4,x=0
I think is called an obtuse angle
Answer:
I believe you use SOH CAH TOA
