Bo`lgan qo`sni burchaklarning nisbatini toping

22) tenglamalar sistemasi a va b ning qanday qiymatlarida cheksiz ko`p ildizga ega bo`ladi ? A) a=-2 b=-10 B) a≠-2 b=10 C) a= 2 b=-10 D) a=-2 b=10

23) Kvadrat shaklidagi tunukadan eni 6 ga teng qismi qirqib olindi . Agar qolgan qismining yuzi 40 ga teng bo`lsa kvadratning tomonini toping ?

A) 8 B) 5 C) 10 D) 9

24)ikkita o`xshash uchburchaklarning piremetrlari 18 va 36 ga teng, yuzalari yig`indisi 52,5 ga teng.Katta uchburchak yuzini toping. A)24 B)36 C)42 D)48

25) ni hisoblang. A)1 B)1 C)1 D)1