2019-09-06 11:09发布
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\documentclass{ctexart} \usepackage{amsmath,mathtools} \begin{document} \[ \begin{dcases} t_{11}=\frac{Tb}{a+b}\\ t_{12}=\frac{Ta}{a+b} \end{dcases}\quad \text{或}\quad \begin{cases} t_{11}=T_1\\ t_{12}=T-T_1 \end{cases} \text{或}\quad \begin{cases} t_{11}=T-T_2\\ t_{12}=T_2 \end{cases} \] \end{document}
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\documentclass{ctexart} \usepackage{amsmath,mathtools} \begin{document} \[ \begin{dcases} t_{11}=\frac{Tb}{a+b}\\ t_{12}=\frac{Ta}{a+b} \end{dcases}\quad \text{或}\quad \begin{cases} t_{11}=T_1\\ t_{12}=T-T_1 \end{cases} \text{或}\quad \begin{cases} t_{11}=T-T_2\\ t_{12}=T_2 \end{cases} \] \end{document}一周热门 更多>