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Question 0

A binary operation \(\oplus\) is defines on the set of all positive integers by a \(\oplus\) b = ab for all positive integers a, b. Which of the following properties does NOT hold?

  • A.closure
  • B.identity
  • C.positive
  • D.inverse
  • E.
Objective

Question details

Exam body
JAMB
Subject
Mathematics
Year
1994
Question no.
#0
Type
Objective
Previous · Q0Find the nth term of the sequence 3, 6, 10, 15, 21..... Next · Q0 \(\begin{array}{c|c} \oplus mod 10 & 2 & 4 & 6 & 8 \\ \hline 2 & 4 & 8 & 2 & 6…

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