Which of the following binary operations is cum... - JAMB Mathematics 1995 Question
Which of the following binary operations is cumulative in the set of integers?
A
a \(\ast\) b = a + 2b
B
a \(\ast\) b = a + b - ab
C
a \(\ast\) b = a2 + b
D
a \(\ast\) b = \(\frac{a(b + 1)}{2}\)
correct option: c
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