Question

If $A=\{1,2,4\},B=\{2,4,5\},C=\{2,5\}$ then $(A-C)\times (B-C)$ is

• A. $\left\{\right(1,4\left)\right\}$
• B. $\left\{\right(1,4),(4,4\left)\right\}$
• C. $\left\{\right(4,1),(4,4\left)\right\}$
• D. $\left\{\right(1,4),(4,1\left)\right\}$

Answer 1

The correct option is B $\left\{\right(1,4),(4,4\left)\right\}$

$A-C=\{1,4\}B-C=\left\{4\right\}$
$(A-C)\times (B-C)=\left\{\right(1,4),(4,4\left)\right\}$