Baholash
\frac{15}{2}=7,5
Omil
\frac{3 \cdot 5}{2} = 7\frac{1}{2} = 7,5
Baham ko'rish
Klipbordga nusxa olish
\frac{21}{4}-\left(-\frac{9}{4}\right)
\frac{-9}{4} kasri manfiy belgini olib tashlash bilan -\frac{9}{4} sifatida qayta yozilishi mumkin.
\frac{21}{4}+\frac{9}{4}
-\frac{9}{4} ning teskarisi \frac{9}{4} ga teng.
\frac{21+9}{4}
\frac{21}{4} va \frac{9}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.
\frac{30}{4}
30 olish uchun 21 va 9'ni qo'shing.
\frac{15}{2}
\frac{30}{4} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
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}