I believe you're referring to "objectivity", not "objective" here. The resume should include only factual statements about your past employment, training, and education.
A business letter should not be included in your resumé. You can even send it with your resumé, but it shouldn't be included in it. The informations regarding your education, contact information, your objective, and employment history are a MUST in a resumé and should always be included.
This is the Newton’s third law of motion buddy: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. Hope it helps :D
The word root "gen" means "birth," and the suffix "-ous" means "having the quality of something." Based on the word root, which word means "an official announcement"?