Alternative Equation Formats

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MathML

D_{X} = I_{X} \frac{1}{(1 - r_{x}^{2}) σ_{x}^{2}}

D_{X} = I_{X} \frac{1}{(1 - r_{x}^{2}) σ_{x}^{2}}

\[ D_{X} = I_{X} \, \, \frac{1}{(1 - r^{2}_{x}) \, \, \sigma ^{2}_{x}} \]