Question

If $a$ and $b$ are any two real numbers such that $ab=0$

• A. $a=0andb=0$
• B. $a=0orb=0$ or both
• C. $a=0$ and $b\ne 0$
• D. $a\ne 0andb=0$

Answer 1

The correct option is B $a=0orb=0$ or both

Consider the given equation,

$ab=0$

The product of real number is equal to zero if,

$a=0$ or $b=0$ or both are zero,

Hence this is the answer.