If =1 23 −4 =0 −67 8, then A+B is equal to / » Mathematical Tools for Economics 1 solved MCQs / By admin Question: If =1 23 −4 =0 −67 8, then A+B is equal to A. 1 −410 4 B. 7 9 −3 −4 C. 3 −36 7 D. none Answer» a. 1 −410 4 Note: The above multiple-choice question is for all general and Competitive Exams in India.