O‘zbеkisтоn rеspublikаsi xаlq та’limi vаzirligi

Bilet №1

1. 
   Tenglama va uning yechimlariga ta’rif bering. Tenglama xossalarini yozing.
   
2. 
   Amallarni bajaring.
   

56856:103∙(1631-386)∙15-70;

3. 
   Birhadni ko‘phadga ko‘paytiring.
   

3x (x²+ 3x - 1).

4. 
   Trapetsiya va uning xossalarini yozing.
   

Bilet № 2

1. 
   α burchakning sinusi va kosinusiga ta’rif bering.
   
2. 
   Funksiyaning aniqlanish sohasini toping.
   

y= 4x²-5x+1

3. 
   Ifodani soddalashtiring.
   

(3x+2)²-2(x-1)²-7x²;

4. 
   Aylana chizing va unda diamert, radius va vatarga ta’rif bering.
   

Bilet № 3

1. 
   Arifmetik progressiyaga ta’rif bering va uning n-hadi formulasini yozing.
   
2. 
   Ifodaning son qiymatini toping.
   

6a³+4ab∙(2a²-b) bunda, a=-2; b=3;

3. 
   Tenglamalar sistemasini algebraik qo‘shish usuli bilan yeching.
   

x+5y=3
x+4y=2

4. 
   Teng yonli uchburchakning asosi 12 sm ga, yon tomoni 10 sm ga teng bo‘lsa, uning yuzi nimaga teng.
   

Bilet № 4

1. 
   Yig‘indining va ayirmaning kvadrati formulasini yozing va ta’rif bering.
   
2. 
   Amallarni bajaring.
   

(1002-30+149408:368)∙25;

3. 
   Kvadrat tenglamani yeching.
   

2 x² +3 x + 1 = 0

4. 
   To‘g‘ri to‘rtburchakning eni 10 sm ga teng, bo‘yi undan 6 sm ga ortiq. Uning perimetrini toping.
   

Bilet № 5

1. 
   Bir noma’lumli tengsizliklarni yechish qoidasini yozing va misollar keltiring.
   
2. 
   Amallarni bajaring.
   

( 128 + 64 ∙ 23 ) : 40

3. 
   Tengsizliklarni yeching.
   

1. 
   25 – 5x < 0; b) 9 – 3 x ≥0
   

4. 
   Uchburchak ichki burchaklari yig‘indisi haqidagi teoremani yozing va isbotlang.