Math Chapter Wise Modern Algebra English MCQ (GIC) Lecture Exam, 2015 Q.Let (R, +,.) be a ring in which a2 = a, ∀ ∀ ∀a∈R Then the incorrect statement for a, b∈R is– Aa. b = 2 (b.a) Bab + ba =0 Ca + a = 0 Da. b = b. a Show answer Correct answer: a. b = 2 (b.a)