You cannot deduct higher education expenses on your income tax return if you or anyone else claims a Hope or Lifetime learning credit based on those SAME expenses.
You cannot claim a deduction or credit based on expenses paid with tax-free scholarship, fellowship, grant, or education savings account funds such as a Coverdell education savings account, tax-free savings bond interest or employer-provided education assistance. The same rule applies to expenses you pay with a tax-exempt distribution from a qualified tuition plan, except that you can deduct qualified expenses you pay only with that part of the distribution that is a return of your contribution to the plan. You cannot deduct qualified education expenses you deduct anywhere else on your return, such as a business expense. Also, you cannot deduct these expenses if your gross income exceeds certain limits explained in Publication 970