I don ' t think it is possible to find the antiderivative of that , since even WolframAlpha cannot do that antiderivativesqrtx % 5 E 3 % 2 Bx % 2 B 1 . Notice that sqrtx 3 x 1 sqrtx 3 x 1 . 5 for x 0 . That means that F 1 2 . 125 212 . 55 c 25 c . So c 2 . 125 25 2 . 525 . So F 4 242 . 55 2 . 525 21625 2 . 525 10 . 275 . Now you have an upper bound . You can do something similar for the lower bound , and then you know your answer if the correct answer is either A , B , C or D . <| sep |> Did you know you have a big zit ? My mom used to do this to me , and then she ' d get mad at me for getting annoyed . I ' m just trying to help ! was her excuse or whatever . How is that helpful ? I own a mirror , thanks . <| sep |> 10 minutes later , how am I still laughing ! This is too priceless !