C-05-Q094mediumsingle_mcq
If a product of two real quantities is zero, then—
If a product of two real quantities is zero, then—
- aboth must be zero
- bneither is zero
- cat least one of them is zero
- dtheir sum is zero
ব্যাখ্যা
This is the zero-product property: if for real numbers, then at least one factor must be zero. It does not require both to be zero, which is why it is the basis of solving by factorization.