The binary operation * is defined on the set R, of real numbers by x * y=3x+3y-xy for all x,y∈R. Determine, in terms of x, the identity element of the operation. a.2x/(x - 3) ,(x≠3) b.2x/(x + 3) ,(x≠-3) c.3x/(x - 3) ,(x≠3) d.3x/(x + 3) ,(x≠-3)
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I think it is of computer science not of maths
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