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  "body": "\n## Summary\n\nThe absolute value of a number is its distance from $0$. We write $|x|$ for the absolute value of $x$.\nFor a real number, $|x|$ is $x$ without its sign, for example $|-3| = |3| = 3$.\nFor a complex number $a + b i$, the absolute value is the [[modulus|0KW2X0TFBX]] $\\sqrt{a^2 + b^2}$.\n",
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