Jismoniy tarbiya

BILET

1. 
   Soddalashtiring: 4+5 +
   
2. 
   Ikki shahardan bir-biriga qarab ikki sayyoh yo‘lga chiqdi. Birinchisi avtomashinada, tezligi 62 km/soat. Ikkinchisi avtobusda, tezligi 48 km/soat. Agar ular 0,6 soatdan keyin uchrashgan bo‘lsa, shaharlar orasidagi masofani toping.
   
3. 
   Soddalashtiring:
   
4. 
   Sinuslar teoremasini keltiring va isbotlang.
   

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4. 
   BILET
   

1. 
   -10m² -20mn-10n² ifodani soddalashtirib, n=19,8 va m=-20 bo‘lganda qiymatini hisoblang.
   
2. 
   Paroxod daryo oqimi bo‘ylab 48 km va oqimga qarshi shuncha masofani 5 soatda bosib o‘tdi. Agar daryo oqimining tezligi soatiga 4 km bo‘lsa, paroxodning turg‘un suvdagi tezligini toping.
   
3. 
   Agar tgα+ctgα=a bo‘lsa, tg²α+ctg²α ni toping
   
4. 
   Uchburchakka tashqi chizilgan aylana ta'rifini keltiring va uning radiusini hisoblash formulasini keltirib chiqaring.
   
5. 
   To‘g‘ri burchakli trapetsiyaning asoslari 12 sm va 16 sm bo‘lib, katta yon tomoni 5 sm ga teng. Trapetsiyaning yuzini hisoblang.
   

5. 
   BILET
   

1. 
   Hisoblang:
   
2. 
   y=4x² +12x+11 parabola uchining koordinatalarini uning grafigini chizmasdan aniqlang.
   
3. 
   Agar bo lsa, ctgx ni toping.
   
4. 
   Doira bo‘laklarini ta’riflang va uning yuzasiga oid formulalarni keltiring.
   
5. 
   To‘g‘ri burchakli uchburchakning burchaklaridan biri 60^oga teng. Uning gipotenuzasi bilan kichik kateti yig‘indisi 60 sm bo‘lsa, uning gipotenuzasini toping.
   

6. 
   BILET
   

1. 
   Soddalashtiring:
   
2.