Tuzuvchi: Matmuratov M. N. Muhammad al-Xorazmiy

5-BILET

1. Agar bo'lsa, ning qiymatini toping.

2. Hisoblang:

3. Tenglamani yeching:

4. Ifodani soddalashtiring: 

5. Uchburchakning ichki burchaklari 2:3:1 nisbatda. Uning burchaklarini toping.

6. Parallelogramm ikki burchagining ayirmasi bo`lsa, uning hamma burchaklarini toping?

7. Ikki to’g’ri chiziqning kesishishidan hosil bo’lgan burchaklardan ikkitasining yig’indisi 180⁰ ga teng emas. Bu burchaklarning vertikal burchaklar ekanligini teskarisini faraz qilish usuli bilan isbotlang.