数学二阶行列式的问题1.像遇到这种题目唯一解与无穷解都要算出来吧!2.令x=t(是为了方便证明原方程组有误穷个解吧!3为何t∈R啊!帮我答一下谢谢!
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![数学二阶行列式的问题1.像遇到这种题目唯一解与无穷解都要算出来吧!2.令x=t(是为了方便证明原方程组有误穷个解吧!3为何t∈R啊!帮我答一下谢谢!](/uploads/image/z/12074845-13-5.jpg?t=%E6%95%B0%E5%AD%A6%E4%BA%8C%E9%98%B6%E8%A1%8C%E5%88%97%E5%BC%8F%E7%9A%84%E9%97%AE%E9%A2%981.%E5%83%8F%E9%81%87%E5%88%B0%E8%BF%99%E7%A7%8D%E9%A2%98%E7%9B%AE%E5%94%AF%E4%B8%80%E8%A7%A3%E4%B8%8E%E6%97%A0%E7%A9%B7%E8%A7%A3%E9%83%BD%E8%A6%81%E7%AE%97%E5%87%BA%E6%9D%A5%E5%90%A7%212.%E4%BB%A4x%3Dt%EF%BC%88%E6%98%AF%E4%B8%BA%E4%BA%86%E6%96%B9%E4%BE%BF%E8%AF%81%E6%98%8E%E5%8E%9F%E6%96%B9%E7%A8%8B%E7%BB%84%E6%9C%89%E8%AF%AF%E7%A9%B7%E4%B8%AA%E8%A7%A3%E5%90%A7%213%E4%B8%BA%E4%BD%95t%E2%88%88R%E5%95%8A%21%E5%B8%AE%E6%88%91%E7%AD%94%E4%B8%80%E4%B8%8B%E8%B0%A2%E8%B0%A2%21)
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