Gjej t, a
t=-\frac{3\sqrt{6}}{10}+\frac{1}{5}\approx -0.534846923\text{, }a=\frac{\sqrt{6}}{10}+\frac{3}{5}\approx 0.844948974
t=\frac{3\sqrt{6}}{10}+\frac{1}{5}\approx 0.934846923\text{, }a=-\frac{\sqrt{6}}{10}+\frac{3}{5}\approx 0.355051026
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