I'm not sure if I did this is right, but here's the question:
Consider the shaded region outside the sector of a circle of radius 10 meters and inside a right triangle.
a) write the area A= f(θ) of the region as a function of θ.
My equation: f(θ) = 50θ - 50 arctanθ
b) What is the domain of the function?
All real numbers.
c) Find lim (θ--> π/2-) A.