The answer would be that the X=3
I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES.
PLEASE SEE ATTACHED IMAGE.
The length of an arc, by definition is given by:
s = R * theta
Where,
R: radio
theta: angle of the bow.
We then have to replace:
s = (6) * (135 * (pi / 180))
s = 14.1 in
Answer:
The length of the arc s is:
s = 14.1 in
f(pi/2) = -2cos(2pi-3) = -2cos(-3) = 2cos3
f(pi/4) = -2cos(pi-3) = -2cos(-3) = 2cos3.
So the rate of change is<span>on the interval from x = 0 to x = pi over 4 is:</span>
<span>4cos3/(pi/4)=16cos3/pi</span>