matemtikadan test

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1. hisoblang: ( 3 2 − 7 5 + 7 3 − 1 4 ) : 4 9 a) 12 b) 10 c) 17 3 d) 13 2 2. √ 9 25 − 36 35 + 36 49 ning qiymatini toping. a) 11 35 b) 9 35 c) 8 35 d) 7 35 3. x5y uch xonali son 45 ga qoldiqsiz bo`linsa, x qabul qilishi mumkin bo`lgan raqamlar yig`indisini toping. a) 4 b) 6 c) 12 d) 14 4. 4n+2∙64−n ko`paytmaning natural bo`luvchilari soni 24 ga teng bo`lsa, n nechaga teng bo`ladi? a) 7 b) 5 c) 4 d) 3 5. agar f ′(1) = 0 va f(x) = x2 + 2ax bo`lsa, a ni toping. a) 5 b) 2 c) 1 d) -1 6. qandaydir sonni 2025 ga bo`lganda, qoldiq 2024 ga teng bo`lsa, shu sonni 5 ga bo`lgandagi qoldiqni toping. a) 1 b) 2 c) 3 d) 4 …

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ini toping. a) 276 b) 246 c) 240 d) 230 20. x2 + (a + 2)x + b – 4 = 0 tenglamaning ildizlari -2 va 3 bo`lsa, (x + 4)2 + a(x + 4) + 2b – 6 = 0 tenglamaning ildizlari yig`indisini toping. a) -2 b) -4 c) -5 d) -7 21. hisoblang: 9 + 99 + 999 + 9999 +…+9999…9⏟ x ta a) 10x+1−9x−10 9 b) 10x+3−9x−10 10 c) 10x+2−10x+9 9 d) 10x−10x−9 10 22. tengsizlikni yeching: (x+3)2(x−5)(x+2) (x+4)(x−6) < 0 a) (-4;-2)ꓴ(5;6) b) (-4;-3)ꓴ(-3;-2)ꓴ(5;6) c) (-4;-3)ꓴ(-2;5) d) (-∞;-4)ꓴ(-3;-2)ꓴ(5;6) 23. geometrik progressiyada: b5 = 2 va b8 = 16 bo`lsa, uning n chi hadini toping. a) 2n−2 b) 23−n c) 2n−4 d) 2n−1 24. agar 64 31 + 71 32 – 27 33 = a bo`lsa, 2 31 + 7 32 + 6 33 ni a orqali ifodalang. a) 3 – a b) 5 – a c) …

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1. hisoblang: ( 3 2 − 7 5 + 7 3 − 1 4 ) : 4 9 a) 12 b) 10 c) 17 3 d) 13 2 2. √ 9 25 − 36 35 + 36 49 ning qiymatini toping. a) 11 35 b) 9 35 c) 8 35 d) 7 35 3. x5y uch xonali son 45 ga qoldiqsiz bo`linsa, x qabul qilishi mumkin bo`lgan raqamlar yig`indisini toping. a) 4 b) 6 c) 12 d) 14 4. 4n+2∙64−n ko`paytmaning natural bo`luvchilari soni 24 ga teng bo`lsa, n nechaga teng bo`ladi? a) 7 b) 5 c) 4 d) 3 5. agar f ′(1) = 0 va f(x) = x2 + 2ax bo`lsa, a ni toping. a) 5 b) 2 …

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