 Kurakik 
                                                18.04.2022 15:39
                                                
                                                Kurakik 
                                                18.04.2022 15:39
                                             LIZA555666777 
                                                18.04.2022 16:39
                                                
                                                LIZA555666777 
                                                18.04.2022 16:39
                                             vadimminaev228 
                                                18.04.2022 17:00
                                                
                                                vadimminaev228 
                                                18.04.2022 17:00
                                             AnnyMay2629 
                                                18.04.2022 17:03
                                                
                                                AnnyMay2629 
                                                18.04.2022 17:03
                                             Comalia 
                                                18.04.2022 17:05
                                                
                                                Comalia 
                                                18.04.2022 17:05
                                             tyfftgv 
                                                18.04.2022 17:07
                                                
                                                tyfftgv 
                                                18.04.2022 17:07
                                             asurnakova156 
                                                18.04.2022 17:16
                                                
                                                asurnakova156 
                                                18.04.2022 17:16
                                             elisavetafolst 
                                                27.10.2021 04:14
                                                
                                                elisavetafolst 
                                                27.10.2021 04:14
                                             shkolnig2013 
                                                27.10.2021 04:22
                                                
                                                shkolnig2013 
                                                27.10.2021 04:22
                                             maxxx1114 
                                                27.10.2021 04:22
                                                
                                                maxxx1114 
                                                27.10.2021 04:22
                                            
pi/4+x/2=-pi/4-piK
x=-pi-piK
2) 3x^3+15x^2