Baholash
\frac{12}{z}
z ga nisbatan hosilani topish
-\frac{12}{z^{2}}
Baham ko'rish
Klipbordga nusxa olish
\frac{5}{z}-\frac{7}{-z}
Faktor: -z.
\frac{5\left(-1\right)}{-z}-\frac{7}{-z}
Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. z va -z ning eng kichik umumiy karralisi -z. \frac{5}{z} ni \frac{-1}{-1} marotabaga ko'paytirish.
\frac{5\left(-1\right)-7}{-z}
\frac{5\left(-1\right)}{-z} va \frac{7}{-z} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.
\frac{-5-7}{-z}
5\left(-1\right)-7 ichidagi ko‘paytirishlarni bajaring.
\frac{-12}{-z}
-5-7 hisob-kitobini qiling.
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}