Uchinchi darajali t englamalarni y echish usullari

Uchinchi darajali t englamalarni y echish 1. Sodda usulda . 2. Grafik usulda . 3. Guruhlash usulida ( А , В , С ) 4. Tanglash usulida . 5. Sun’iy usulda

1 . Oddiy usulda y echish A1. Tenglamani ildizlarini toping х ³ = 8 1. -2 ; 2; 2. 0; 3. ; 4. 2; 5. - .8 3 8

2. Grafi k usulda A2. Berilgan quyidagi oraliqlarda tenglamani yeching : - x 3 = x + 2 : 1. (0; + ); 2. (-1; 0); 3. [-1; 0); 4. (-; -1);  5. (-3; -2]. y - 3 - 2 - 1 0 1 2 3 - 1 0 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 1 2 3 4 5 6 7 8 9 1 0 xy = x + 2 y = - x 3

3. Guruhlash usuida А 3 . Tenglama ildizlarining o’rta arifmetik qiymatini toping х ³ - 3 х ² - 4 х + 12 = 0 1) -1; 4) 2/3; 5) -3.2) 1/3; 3) 1;