Baholash
21-12\sqrt{3}\approx 0,215390309
Kengaytirish
21-12\sqrt{3}
Baham ko'rish
Klipbordga nusxa olish
9-12\sqrt{3}+4\left(\sqrt{3}\right)^{2}
\left(a-b\right)^{2}=a^{2}-2ab+b^{2} binom teoremasini \left(3-2\sqrt{3}\right)^{2} kengaytirilishi uchun ishlating.
9-12\sqrt{3}+4\times 3
\sqrt{3} kvadrati – 3.
9-12\sqrt{3}+12
12 hosil qilish uchun 4 va 3 ni ko'paytirish.
21-12\sqrt{3}
21 olish uchun 9 va 12'ni qo'shing.
9-12\sqrt{3}+4\left(\sqrt{3}\right)^{2}
\left(a-b\right)^{2}=a^{2}-2ab+b^{2} binom teoremasini \left(3-2\sqrt{3}\right)^{2} kengaytirilishi uchun ishlating.
9-12\sqrt{3}+4\times 3
\sqrt{3} kvadrati – 3.
9-12\sqrt{3}+12
12 hosil qilish uchun 4 va 3 ni ko'paytirish.
21-12\sqrt{3}
21 olish uchun 9 va 12'ni qo'shing.
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}