9 lines
169 B
TeX
9 lines
169 B
TeX
\documentclass[preview]{standalone}
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\usepackage[english]{babel}
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\usepackage{amsmath}
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\usepackage{amssymb}
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\begin{document}
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\begin{align*}
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R_2
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\end{align*}
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\end{document} |