10-sinf olimpiada test

1	2	3	4	5	6	7	8	9	10	11	12	13	14
15
B	B	C	B	D	B	C	C	D	D	C	D	B	B	B

11-sinf olimpiada yozma ish
1. Butun koeffisientli tenglama uchta ildizga ega va bu ildizlardan biri −2 ga teng bo’ladigan a parametrning eng katta qiymatini toping.

2. ifodaning eng kichik qiymatini toping.

3. ABC ning AB tomonida shunday D nuqta olinganki, bunda AD=2, DB=1, DC= . Agar ACB=120⁰ bo’lsa, ABC yuzasini toping.

J:B 1) A=8 2) ≥45 3)S_ABC=