Is * defined by a*b=2a+b is binary operation on Z.

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Is * defined by {a}*{b}={{{a}+{b}}}{{2}} is binary operation o

Question

Is * defined by $a$ * $b = \frac{a + b}{2}$ is binary operation on Z.

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Is * defined by

a

b = \frac{a + b}{2}

is binary operation on Z.

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Question Text

Is * defined by

a

b = \frac{a + b}{2}

is binary operation on Z.