Suppose (1, 2) + (y1, y2) is defined to be (x1+ y2, x2 + y1). With the usual cx = (cx1, cx2), which of the eight conditions are not satisfied? multiplication

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A: The given expression is  x2-y2x2-2xy+y2·x-y2x+y2 we know,    x-y2=x-yx-y=x2-xy-yx+y2=x2-2xy+y2…

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