2. Tengsizlikni yeching: Tengsizlik teng kuchli yoki teng kuchli emasligini aniqlang: 4

1. Tengsizlikning butun yechimlari yig’indisini toping.
2. Tengsizlikni yeching:
3. Tengsizlik teng kuchli yoki teng kuchli emasligini aniqlang:

4. Tengsizlikni yeching:
5. Tengsizlikni yeching:
6. Tengsizlikni yeching:
7. Tengsizlikni yeching:
8. Tengsizlikni yeching:
9. Kvadrat tengsizlikni yeching:
10. Kvadrat tengsizlikni yeching:
11. Tenglamani yeching:
12. Tenglamani yeching.
13. Tenglamaning butun yechimlarini toping.
14. Tenglamani yeching.
15. Modulli tenglamani yeching:

16. Tenglamani yeching:
17. Modulli tenglamani yeching:
18. Tenglamani yeching:
19. Tenglamani yeching:

20. Tenglamalar sistemasini yeching.
21. To’g’ri burchakli ABC uchburchakning AB gipotenuzasi 26 sm ga, AC kateti 24 sm ga teng. Uchburchakning A burchagi sinusi, kosinusi, tangensi va kotangensini toping.
2 2. Agar ABC uchburchakda ∠C=90°, cosA= va AC=6 sm bo’lsa, uchburchakning qolgan tomonlarini toping.
23. d rasmdagi ma’lumotlar asosida a) sinA, cosA, tgB, ctgB ni b) sinB, cosB, tgB, ctgB ni toping.
24. To’g’ri burchakli ABC (∠C=90°) uchburchakda sinB= va BC=34 sm bo’lsa, ikkinchi katetini toping.
25. ABCD trapetsiyada sinD=0,5, CD=16, BC=12, AD=20 bo’lsa, trapetsiyaning yuzini toping.
2 6. ABCD rombda sinA=0,8 va AB=30 sm bo’lsa, romb yuzini toping.
27. b rasmdagi uchburchak burchaklarini toping.
28. Diagonallari 10 va 10 sm bo’lgan rombning burchaklarini toping.
29. To’g’ri burchakli trapetsiyaning o’tkir burchagi 30° ga, balandligi 8 sm ga va kichik asosi 12 sm ga teng. Trapetsiyaning perimetri va yuzini toping.
30. Teng yonli uchburchakni uchidagi burchagi 120°. Uning balandligining asosiga nisbatini hisoblang.