t uchun yechish
t=-\frac{\sqrt{15}}{5}\approx -0,774596669
t'ni tayinlash
t≔-\frac{\sqrt{15}}{5}
Baham ko'rish
Klipbordga nusxa olish
t=\frac{-10}{\frac{50}{\sqrt{15}}}
-10 olish uchun 290 dan 300 ni ayirish.
t=\frac{-10}{\frac{50\sqrt{15}}{\left(\sqrt{15}\right)^{2}}}
\frac{50}{\sqrt{15}} maxrajini \sqrt{15} orqali surat va maxrajini koʻpaytirish orqali ratsionallashtiring.
t=\frac{-10}{\frac{50\sqrt{15}}{15}}
\sqrt{15} kvadrati – 15.
t=\frac{-10}{\frac{10}{3}\sqrt{15}}
\frac{10}{3}\sqrt{15} ni olish uchun 50\sqrt{15} ni 15 ga bo‘ling.
t=\frac{-10\sqrt{15}}{\frac{10}{3}\left(\sqrt{15}\right)^{2}}
\frac{-10}{\frac{10}{3}\sqrt{15}} maxrajini \sqrt{15} orqali surat va maxrajini koʻpaytirish orqali ratsionallashtiring.
t=\frac{-10\sqrt{15}}{\frac{10}{3}\times 15}
\sqrt{15} kvadrati – 15.
t=\frac{-2\sqrt{15}}{3\times \frac{10}{3}}
Surat va maxrajdagi ikkala 5 ni qisqartiring.
t=\frac{-2\sqrt{15}}{10}
3 va 3 ni qisqartiring.
t=-\frac{1}{5}\sqrt{15}
-\frac{1}{5}\sqrt{15} ni olish uchun -2\sqrt{15} ni 10 ga bo‘ling.
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