History, 12.02.2021 14:10 christinafish9303

1.)An operation * is defined on the set R, of real numbers by mn= -n÷m²+1
where m, n are real numbers. If -3, -10 are real numbers, show
whether or not is commutative.

b) Given that xy=2x-y, where x
and y are real numbers, find the value of
i) 5 (45)
ii) y if y(3*)=6.

Answers: 3

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1.)An operation * is defined on the set R, of real numbers by m*n= -n÷m²+1
where m, n are real...