Let X be a normed space. (a) If X is reflexive, then X is reflexive. (b) If X is reflexive and X is complete, then X is reflexive. (c) Why is it necessary that X is complete in part (b)? Give an example. Let X be a normed space. (a) If X is reflexive, then X is reflexive. (b) If X is reflexive and X is complete, then X is reflexive. (c) Why is it necessary that X is complete in part (b)? Give an example. Let X be a normed space. (a) If X is reflexive, then X is reflexive. (b) If X is reflexive and X is complete, then X is reflexive. (c) Why is it necessary that X is complete in part (b)? Give an example.