Question

If $A$ $=\left\{\right(n,2n);nϵZ\}$ and B $=\left\{\right(2n,3n);nϵZ\}$,then find $A\cap B$

• A. $\{(n,6n):nϵz\}$
• B. $\{(2n,6n):nϵz\}$
• C. $\{(n,3n):nϵz\}$
• D. $\Phi$

Answer 1

The correct option is D $\Phi$

A $=(n,2n);nϵZ$

B $=(2n,3n);nϵZ$

$A\cap B=\varphi$(there is no ordered pair).