Calculus I Question Help

Let F (x) = f* 2 - cos (t? ) at where a = 0. (The integrand does not have a "nice" antiderivative and you should not try to compute it nor look it up for this problem) i) Explain how you know that F(x) is 1-1, and therefore has an inverse F-1(x) ii) Find (F-!) (0) to three decimal places and enter it in the box below