Tenglamalar sistemasi va ularni yechish usullari. Reja

Nazorat misollari:

1. Sistemani qo’shish usulida va o’rniga qo’yish usulida eching.

1.
2.
3.


Topshiriqlar:

Sistemani eching.

1.
2.
3.
Tayanch iboralar.

1. 
   Tenglama
   
2. 
   Sistema
   
3. 
   Algebraik
   
4. 
   Algebraik tenglamalar sistemasi;
   
5. 
   Algebraik tenglamalar sistemasi ildizlari.
   

Nazorat savollari:

1. 
   Algebraik tenfglamalar sistemasiga ta’rif bering;
   
2. 
   Sistemani yechish usullarini tushuntirib bering;
   
3. 
   Algebraik tenglamalar sistemasini yechishda o’rniga qo’yish usulini tushutirib bering.
   
4. 
   Algebraik tenglamalar sistemasini yechishda qo’shish usulini tushutirib bering.
   
5. 
   Algebraik tenglamalar sistemasini yechishda o’zgaruvchilarni almashtirish usulini tushutirib bering.
   

Masala. Maktab uchun 15ta tennis raketkasi va 5 ta futbol tupi sotib olindi, ular 64 so’m to’plandi. Agar 5ta raketka 2 ta to’pdan 3so’m qimmat tursa, raketka qancha va tup qancha turadi.
Yechish: raketka x sum, tup y sum. U holda 15ta raketka va 5 ta tup 15x+5y=64c