Sqrt(4 2x - x ^ 2) = x - 2 July 8, 2019 16 32 64 128 Sqrt 4 2x x 2 x 2 Sqrt x 4 4x 2 9a 2 )= x 2 2x 3a Sqrt x 4 4x 2 a 2 )= x 2 2x a Lim x 2 2x 4 3 sqrt x 2 5 Integral of x^2/sqrt(4-x^2)