OK. Let's look a bit farther in John 11 and see what it was that Martha believed. These passages of course, are in connection with the death of Martha's brother Lazarus, Jesus had been told that his friend was sick, and Jesus had told them that the illness would not lead to death, and he delayed going to him for two days. He then told his disciples that Lazarus had fallen asleep and he was going to awaken him. They thought he meant taking rest and would therefore recover. So he told them plainly that no, he had died, and he said a curious thing, "Lazarus has died, and for your sake I am glad that I was not there, so that you may believe. But let us go to him."
When he arrived, he found that Lazarus had been in the tomb four days. Martha ran to meet him and said, "Lord, if you had been here, my brother would not have died. But even now I know that whatever you ask from God, God will give you." Jesus replied, "Your brother will rise again," Martha said to him, "I know that he will rise again in the resurrection on the last day."
Those Jews of the day who followed the teachings of the Pharisees did believe in the resurrection of the dead, so this statement of Martha is in agreement with that teaching, not a statement about Jesus. And Jesus promptly identifies something much deeper. "I am the resurrection and life. Whoever believes in me, though he die, yet he shall live, and everyone who lives and believes in me shall never die. Do you believe this?"
Martha's answer, "Yes, Lord; I believe you are the Christ, the Son of God who is coming into the world." It was as tough a light went on and all the Messianic prophecies that she would have been familiar with, coalesced in the man standing before her. She calls him Lord. She understood. She believed.
So I ask again: Is it possible to believe what Martha believed and simultaneously reject it---not believe it?