Sorry this might sound stupid but I have a question regarding division by zero.
I know division by zero is undefined.
For ex, In DS questions, if its given that x/y > 0. Can we assume that y is not equal to zero?
You wouldn't even need to assume. Official questions mention explicitly y/x = ... such that x \neq 0
If somewhere it is not mentioned, you can assume it.
Mind you, that means GIVEN yx = x^2 and NOT GIVEN x \neq 0
, you cannot divide both sides by x.yx/x = x^2/x
You must do this: yx - x^2 = 0x(y - x) = 0x = 0
or y = x
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