math_expression_test.md

The Cauchy-Schwarz Inequality ${\left(\sum _{k=1}^n{a}_k{b}_k\right)}^2\le \left(\sum _{k=1}^n{a}_k^2\right)\left(\sum _{k=1}^n{b}_k^2\right)$

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This sentence uses $ delimiters to show math inline: $\sqrt{3x-1}+(1+x{)}^2$