Tuzuvchi: Matmuratov M. N. Muhammad al-Xorazmiy

13-BILET

1. sonlari jufti tenglamalar sistemasining yechimi, ni hisoblang.

2. Hisoblang:

3. Tenglamani yeching:

4. Ifodani soddalashtiring: 

5. Uchburchakning 108 li tashqi burchagiga qo`shni bo`lmagan ichki burchaklarning nisbati 5:4 kabi. Shu ichki burchaklarning kichigini toping?

6.Parallelogramm ikkita burchagining yig`indisi 142 bo`lsa, paralelogramm burchaklarini toping?

7. Kecma o'rta perpendikulyari haqidagi teoremani isbotlang.