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Mathematics 16 Online
OpenStudy (anonymous):

If A = {red, orange, black, grey} and B = {red, orange, yellow, green, blue, indigo, violet}, what is A UB?

OpenStudy (anonymous):

A U B = {The items that have been repeated in both sets}

OpenStudy (anonymous):

AUB={red, orange, black, grey, yellow,green ,blue, indigo, violet}

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