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What an examiner should do if a student answer all the questions instead of answering three questions?
In most exams students would prefer to answer all questions. Here is a simple instructions: ANSWER ANY FOUR QUESTIONS. If a student answer all the questions, what would you do if you were an examiner marking?
5 AnswersTeaching4 years agoMaths binary operations?
Two operations * and ® are defined by the set of R of real numbers by a*b=a-2b and a®b= a+ab
(a) find the value of
(i) 3*-5
(ii) -5*3
(b) is the operation * commutative?
(ii)
Calculate the -2®6
(iii) -5*( 3®-6)
1 AnswerMathematics4 years ago