(3 points) For each of the following improper integrals, carefully use the comparison test to decide if the integral converges or diverges. All of your 'similar integrands' should be in the form 1/a for some power p. 5x dx x4 + 1 A similar integrand whose behaviour is known is , so we find that this integral O A. converges O B. diverges x +3 2 . dx - a A similar integrand whose behaviour is known is so we find that this integral O A. converges O B. diverges 0 4 + sin(xc) 3. A similar integrand whose behaviour is known is , so we find that this integral O A. converges O B. diverges