Alternative Equation Formats

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MathML

s 2 = ( n 1 − 1 ) s 1 2 + ( n 1 − 1 ) s 2 2    n 1 +   n 2 − 2

MathML rendered with MathJax

s 2 = ( n 1 − 1 ) s 1 2 + ( n 1 − 1 ) s 2 2    n 1 +   n 2 − 2

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