In the first quadrant: $ x + y \geq 0, x - y \geq 0 \Rightarrow |x + y| + |x - y| = (x + y) + (x - y) = 2x $ - AMAZONAWS

📅 March 11, 2026 👤 scraface

Mar 11, 2026

$In the first quadrant: $ x + y \geq 0, x - y \geq 0 \Rightarrow |x + y| + |x - y| = (x + y) + (x - y) = 2x $$