Bunuel wrote:
Is \(|xy| > xy\)?
(1) \(\sqrt{x^2y^2}=xy\)
(2) \(|x|+|y|=x+y\)
Forget conventional ways of solving math questions. In DS, Variable approach is the easiest and quickest way to find the answer without actually solving the problem. Remember equal number of variables and independent equations ensures a solution.
The first step of VA (Variable Approach) method is modifying the original condition and the question, and rechecking the number of variables and the number of equations.
The question\(|xy| > xy\) is
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