Baholash
\frac{21-5\sqrt{17}}{2}\approx 0,192235936
Kengaytirish
\frac{21 - 5 \sqrt{17}}{2} = 0,1922359359558481
Baham ko'rish
Klipbordga nusxa olish
\frac{\left(5-\sqrt{17}\right)^{2}}{2^{2}}
\frac{5-\sqrt{17}}{2}ni darajaga oshirish uchun, surat va maxrajni darajaga oshirib, keyin bo‘ling.
\frac{25-10\sqrt{17}+\left(\sqrt{17}\right)^{2}}{2^{2}}
\left(a-b\right)^{2}=a^{2}-2ab+b^{2} binom teoremasini \left(5-\sqrt{17}\right)^{2} kengaytirilishi uchun ishlating.
\frac{25-10\sqrt{17}+17}{2^{2}}
\sqrt{17} kvadrati – 17.
\frac{42-10\sqrt{17}}{2^{2}}
42 olish uchun 25 va 17'ni qo'shing.
\frac{42-10\sqrt{17}}{4}
2 daraja ko‘rsatkichini 2 ga hisoblang va 4 ni qiymatni oling.
\frac{\left(5-\sqrt{17}\right)^{2}}{2^{2}}
\frac{5-\sqrt{17}}{2}ni darajaga oshirish uchun, surat va maxrajni darajaga oshirib, keyin bo‘ling.
\frac{25-10\sqrt{17}+\left(\sqrt{17}\right)^{2}}{2^{2}}
\left(a-b\right)^{2}=a^{2}-2ab+b^{2} binom teoremasini \left(5-\sqrt{17}\right)^{2} kengaytirilishi uchun ishlating.
\frac{25-10\sqrt{17}+17}{2^{2}}
\sqrt{17} kvadrati – 17.
\frac{42-10\sqrt{17}}{2^{2}}
42 olish uchun 25 va 17'ni qo'shing.
\frac{42-10\sqrt{17}}{4}
2 daraja ko‘rsatkichini 2 ga hisoblang va 4 ni qiymatni oling.
Misollar
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Matritsa
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simli tenglama
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Oʻngga
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Chegaralar
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