1 1 1 1 1
--------- + --------------- + --------------- + --------------- + ---------------
x*(1 + x) (1 + x)*(2 + x) (2 + x)*(3 + x) (3 + x)*(4 + x) (4 + x)*(5 + x)
$$\frac{1}{\left(x + 4\right) \left(x + 5\right)} + \frac{1}{\left(x + 3\right) \left(x + 4\right)} + \frac{1}{\left(x + 2\right) \left(x + 3\right)} + \frac{1}{\left(x + 1\right) \left(x + 2\right)} + \frac{1}{x \left(x + 1\right)}$$
1/(x*(1.0 + x)) + 1/((1.0 + x)*(2.0 + x)) + 1/((2.0 + x)*(3.0 + x)) + 1/((4.0 + x)*(3.0 + x)) + 1/((4.0 + x)*(5.0 + x))
Рациональный знаменатель
[src] / / 2 \ 2 2 \ 2 2 2
(4 + x)*(5 + x)*\(3 + x)*(4 + x)*\x*(1 + x) *(2 + x) + (2 + x)*(3 + x)*(x*(1 + x) + (1 + x)*(2 + x))/ + x*(1 + x) *(2 + x) *(3 + x)/ + x*(1 + x) *(2 + x) *(3 + x) *(4 + x)
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2 2 2 2
x*(1 + x) *(2 + x) *(3 + x) *(4 + x) *(5 + x)
$$\frac{1}{x \left(x + 1\right)^{2} \left(x + 2\right)^{2} \left(x + 3\right)^{2} \left(x + 4\right)^{2} \left(x + 5\right)} \left(x \left(x + 1\right)^{2} \left(x + 2\right)^{2} \left(x + 3\right)^{2} \left(x + 4\right) + \left(x + 4\right) \left(x + 5\right) \left(x \left(x + 1\right)^{2} \left(x + 2\right)^{2} \left(x + 3\right) + \left(x + 3\right) \left(x + 4\right) \left(x \left(x + 1\right)^{2} \left(x + 2\right) + \left(x + 2\right) \left(x + 3\right) \left(x \left(x + 1\right) + \left(x + 1\right) \left(x + 2\right)\right)\right)\right)\right)$$
$$\frac{5}{x \left(x + 5\right)}$$
1 1 1 1 1
--------- + --------------- + --------------- + --------------- + ---------------
x*(x + 1) (x + 2)*(x + 1) (x + 3)*(x + 2) (x + 3)*(x + 4) (x + 4)*(x + 5)
$$\frac{1}{\left(x + 4\right) \left(x + 5\right)} + \frac{1}{\left(x + 3\right) \left(x + 4\right)} + \frac{1}{\left(x + 2\right) \left(x + 3\right)} + \frac{1}{\left(x + 1\right) \left(x + 2\right)} + \frac{1}{x \left(x + 1\right)}$$
$$\frac{5}{x^{2} + 5 x}$$
$$\frac{5}{x \left(x + 5\right)}$$
1 1 1 1 1
--------- + --------------- + --------------- + --------------- + ---------------
x*(x + 1) (x + 1)*(x + 2) (x + 2)*(x + 3) (x + 3)*(x + 4) (x + 4)*(x + 5)
$$\frac{1}{\left(x + 4\right) \left(x + 5\right)} + \frac{1}{\left(x + 3\right) \left(x + 4\right)} + \frac{1}{\left(x + 2\right) \left(x + 3\right)} + \frac{1}{\left(x + 1\right) \left(x + 2\right)} + \frac{1}{x \left(x + 1\right)}$$