Your educational achievements will be clearly stated on your resume. As a new grad, you should use the cover letter to emphasize the experience you've acquired through various internships and jobs during your university years. If your major is directly applicable to the position for which you're applying, feel free to bring up projects or coursework that strengthens your candidacy. Just be sure they are highly relevant to the skills required for the job so the hiring manager isn't left wondering why you've included those details.
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