Javob: A)
2.2.11. (01-2-31) Tengsizlikni yeching.
A) (-∞;-1] B) {-1} C) [-1;0) D) (0;∞) E) [-1;1)
Yechish. hamda bo’lganligidan, berilgan tengsizlikni unga teng kuchli bo’lgan quyidagi sistema bilan almashtiramiz:
Bu tengsizlikni ishlasak, x=-1 yechimga ega bo’lamiz.
Javob: B) {-1}
2.2.12. (99-4-53) Tengsizlikni yeching.
A) [-1;0) B) [-2;-1] C) -2; -1 D) -1 E) (-3;0)∪(0;1)
Yechish. hamda bo’lganligidan, berilgan tengsizlikni unga teng kuchli bo’lgan quyidagi sistema bilan almashtiramiz:
Bu tengsizlikni ishlasak, x=-1 yechimga ega bo’lamiz.
Javob: D) {-1}
2.2.13. Tengsizlikning eng katta butun va eng kichik musbat butun yechimlar yig’indisini toping.
Yechish. Tengsizlikni ko’paytuvchilarga ajratamiz:
tengsizlik quyidagi tengsizliklar sistemasiga teng kuchli
1)
2)
Demak, tengsizlikning yechimi ![](data:image/png;base64,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)
Eng katta musbat yechim 3
Eng kichik musbat yechim 2
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