151. n sonning tengsizlikni qanoatlantiruvchi eng katta butun qiymatini toping:

1) n ≤ –2;                    2) n ≤ 3;                        3) n < 4;

4) n ≤ –5;                      3) n ≤ 0,2;                       6) n ≤ –0,3.

152. n sonning tengsizlikni qanoatlantiruvchi eng kichik butun qiymatini toping:

1) n ≥ –3;                    2) n ≥ 6;                         3) n ≥ –6;

4) n ≥ –4;                      3) n > –4,21;                    6) n ≥ 3,24.

153. x sonning tengsizlikni qanoatlantiruvchi eng kichik butun qiymatini toping:

1)                                  2)

154. Tengsizlik belgilaridan foydalanib, quyidagi jumlalarni yozing:

1) Bugun Toshkentda 0 ⁰C, Farg`ona vodiysida esa (t ⁰C) temperatura undan yuqori emas.

2) Suv 5 m dan kam bo`lmagan (h m) balandlikka ko`tarildi.

3) Normal bosimdagi suvning suyuq holatidagi (t ⁰C) temperaturasi 0 ⁰C dan kam emas; 100 ⁰C dan orvtiq emas.

4) Shaharda avtomobil transportining (v km/soat) harakat tezligi 70 km/soat dan katta emas.

155.                       a ≤ b bo`lsin. Tengsizlik to`g`rimi:

1) a – 3 ≤ b – 3;                                                2)  5a ≤ 5b;

3) a + 2,5 < b + 2,5;                                          4)  a – 4 > 5 – 4.

156.                       a ≥ b bo`lsin. Tengsizlik to`g`rimi:

1) –2a > –2b;                                                    2) –3a ≤ –3b;

3)                                                         4)