1 1 4 2
-------- - ------- - --------- - --------
-1 + 3*x 1 + 3*x 4 2
1 + 81*x 1 + 9*x
$$- \frac{4}{81 x^{4} + 1} - \frac{2}{9 x^{2} + 1} - \frac{1}{3 x + 1} + \frac{1}{3 x - 1}$$
1/(-1.0 + 3.0*x) - 1/(1.0 + 3.0*x) - 2.0/(1.0 + 9.0*x^2) - 4.0/(1.0 + 81.0*x^4)
Рациональный знаменатель
[src]/ 4\ / 2 \ / 2\
\1 + 81*x /*\2 + 18*x - 2*(1 + 3*x)*(-1 + 3*x)/ - 4*(1 + 3*x)*\1 + 9*x /*(-1 + 3*x)
------------------------------------------------------------------------------------
/ 2\ / 4\
(1 + 3*x)*\1 + 9*x /*\1 + 81*x /*(-1 + 3*x)
$$\frac{1}{\left(3 x - 1\right) \left(3 x + 1\right) \left(9 x^{2} + 1\right) \left(81 x^{4} + 1\right)} \left(- 4 \left(3 x - 1\right) \left(3 x + 1\right) \left(9 x^{2} + 1\right) + \left(81 x^{4} + 1\right) \left(18 x^{2} - 2 \left(3 x - 1\right) \left(3 x + 1\right) + 2\right)\right)$$
Объединение рациональных выражений
[src] // 4\ / 2 \ / 2\ \
2*\\1 + 81*x /*\1 + 9*x - (1 + 3*x)*(-1 + 3*x)/ - 2*(1 + 3*x)*\1 + 9*x /*(-1 + 3*x)/
-------------------------------------------------------------------------------------
/ 2\ / 4\
(1 + 3*x)*\1 + 9*x /*\1 + 81*x /*(-1 + 3*x)
$$\frac{1}{\left(3 x - 1\right) \left(3 x + 1\right) \left(9 x^{2} + 1\right) \left(81 x^{4} + 1\right)} \left(- 4 \left(3 x - 1\right) \left(3 x + 1\right) \left(9 x^{2} + 1\right) + 2 \left(81 x^{4} + 1\right) \left(9 x^{2} - \left(3 x - 1\right) \left(3 x + 1\right) + 1\right)\right)$$
8
------------
8
-1 + 6561*x
$$\frac{8}{6561 x^{8} - 1}$$
1 1 2 4
------- - ------- - -------- - ---------
3*x - 1 3*x + 1 2 4
9*x + 1 81*x + 1
$$- \frac{4}{81 x^{4} + 1} - \frac{2}{9 x^{2} + 1} - \frac{1}{3 x + 1} + \frac{1}{3 x - 1}$$
8
-------------------------------------------
/ 2\ / 4\
(1 + 3*x)*\1 + 9*x /*\1 + 81*x /*(-1 + 3*x)
$$\frac{8}{\left(3 x - 1\right) \left(3 x + 1\right) \left(9 x^{2} + 1\right) \left(81 x^{4} + 1\right)}$$
8
------------
8
-1 + 6561*x
$$\frac{8}{6561 x^{8} - 1}$$