Question

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

{black, pink}

{red, orange, yellow, green, blue, indigo, violet, black, pink}

{all colors except black and pink}

{ }

Answer 1

{red, orange, yellow, green, blue, indigo, violet, black, pink}