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OpenStudy (anonymous):
If A = {black, pink} and B = {red, orange, yellow, green, blue, indigo, violet}, what is A U B?
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OpenStudy (callisto):
A U B = include all A and B So... A U B = {black, pink, red, orange, yellow, green, blue, indigo, violet}
OpenStudy (anonymous):
Thank you s'much
OpenStudy (callisto):
welcome :)
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