Question

If the product of two whole numbers is zero, can we say that one or both of them will be zero . Justify your answer through examples.

Answer 1

If the product of two whole numbers is zero then we can say that one or both of them will be zero because of following condition:

$\Rightarrow 0\times a=a\times 0=0$ ( here a is any whole number other than zero)

$\Rightarrow 0\times 0=0$

Hence , above case shows that if product of two whole number is zero than one or both numbers could be equal to zero.