Baholash
\frac{4\sqrt{7}}{21}\approx 0,503952631
Baham ko'rish
Klipbordga nusxa olish
\frac{12\sqrt{7}}{9\left(\sqrt{7}\right)^{2}}
\frac{12}{9\sqrt{7}} maxrajini \sqrt{7} orqali surat va maxrajini koʻpaytirish orqali ratsionallashtiring.
\frac{12\sqrt{7}}{9\times 7}
\sqrt{7} kvadrati – 7.
\frac{4\sqrt{7}}{3\times 7}
Surat va maxrajdagi ikkala 3 ni qisqartiring.
\frac{4\sqrt{7}}{21}
21 hosil qilish uchun 3 va 7 ni ko'paytirish.
Misollar
Ikkilik tenglama
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometriya
4 \sin \theta \cos \theta = 2 \sin \theta
Chiziqli tenglama
y = 3x + 4
Arifmetik
699 * 533
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
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differensatsiya
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Oʻngga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Chegaralar
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}