Подстановка условия
[src]
1/(sqrt(1 - a)*sqrt(1 - a)) - (sqrt(a) - 1/(sqrt(a)))/(1 - a) при a = 2
___ 1
\/ a - 1*-----
___
1 1 \/ a
1*---------*--------- - ---------------
_______ _______ 1 - a
\/ 1 - a \/ 1 - a
$$- \frac{\sqrt{a} - 1 \cdot \frac{1}{\sqrt{a}}}{- a + 1} + 1 \cdot \frac{1}{\sqrt{- a + 1}} \cdot \frac{1}{\sqrt{- a + 1}}$$
___
-1 + a - \/ a
--------------
___
\/ a *(-1 + a)
$$\frac{- \sqrt{a} + a - 1}{\sqrt{a} \left(a - 1\right)}$$
$$a = 2$$
_____
-1 + (2) - \/ (2)
------------------
_____
\/ (2) *(-1 + (2))
$$\frac{- \sqrt{(2)} + (2) - 1}{\sqrt{(2)} \left((2) - 1\right)}$$
___
-1 + 2 - \/ 2
--------------
___
\/ 2 *(-1 + 2)
$$\frac{- \sqrt{2} - 1 + 2}{\sqrt{2} \left(-1 + 2\right)}$$
___ / ___\
\/ 2 *\1 - \/ 2 /
-----------------
2
$$\frac{\sqrt{2} \cdot \left(- \sqrt{2} + 1\right)}{2}$$
___ 1
\/ a - -----
___
1 \/ a
----- - -------------
1 - a 1 - a
$$- \frac{\sqrt{a} - \frac{1}{\sqrt{a}}}{- a + 1} + \frac{1}{- a + 1}$$
1 ___
----- - \/ a
___
1 \/ a
----- + -------------
1 - a 1 - a
$$\frac{- \sqrt{a} + \frac{1}{\sqrt{a}}}{- a + 1} + \frac{1}{- a + 1}$$
1/(1 - a) + (1/sqrt(a) - sqrt(a))/(1 - a)
Рациональный знаменатель
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___
1 1 \/ a
----- + ------------ - -----
1 - a ___ 3/2 1 - a
\/ a - a
$$- \frac{\sqrt{a}}{- a + 1} + \frac{1}{- a^{\frac{3}{2}} + \sqrt{a}} + \frac{1}{- a + 1}$$
___ 2 3/2
\/ a + (-1 + a) - a
------------------------
___ 2
\/ a *(-1 + a)
$$\frac{- a^{\frac{3}{2}} + \left(a - 1\right)^{2} + \sqrt{a}}{\sqrt{a} \left(a - 1\right)^{2}}$$
(sqrt(a) + (-1 + a)^2 - a^(3/2))/(sqrt(a)*(-1 + a)^2)
Объединение рациональных выражений
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___
1 + \/ a - a
-------------
___
\/ a *(1 - a)
$$\frac{\sqrt{a} - a + 1}{\sqrt{a} \left(- a + 1\right)}$$
(1 + sqrt(a) - a)/(sqrt(a)*(1 - a))