(1 - x^3) / x-3 >= 0

Question

(1 - x^3) / x-3 >= 0

Answer 1

(1 - x^3) / x-3 >= 0

метод интервалов

(1-x^3)(x-3)>=0

(x^3-1)(x-3)>=0

x=1        x=3

 

------------------------------------

-----------------

========черная=====белая================

        +              1             -        3           +