King Saud University
  Help (new window)

تحميل الدليل التدريبي

أسئلة شائعة


Name:                                                  Math 344, Quize#1.




 Q1: Let R be a ring without zero divisor and with identity. Then prove that:-


          If  aЄR, a²=1  then either a= 1R  or a= -1R




Q2: If R be a ring with identity and S is a subring of R with identity such that  1S ≠ 1R    

then prove that 1S  is a zero divisor in R.




King   Saud University. All rights reserved, 2007 | Disclaimer | CiteSeerx