Mathematics for IGCSE & O level - Sets (Section 3 - No. 10)
If A = {red, green, blue} and B = {blue, yellow, orange}, what is the result of A - B?
{red, green}
{blue}
{red, green, blue, yellow, orange}
{yellow, orange}
Explanation
A - B represents all the elements in A that are not in B.
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