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Bog'liq
Kombinatorika

Binom formulasi


  1. (2x+y)4 ifodada qavsni oching.

  2. (x-y)5 ifodani yoying.

  3. (3x-2y)20 binom yoyilmasida koeffisiyentlar yig`indisi nechaga teng?

A) -1 B) 0 C) 1 D) 5 E) 520
63. (2x2-x+1)4(3x-2)5 ko`phadning koeffisiyentlar yig`indisi nechaga teng?
A) 128 B) 80 C) 64 D) 40 E) 16

  1. (1+2x)10 binom yoyilmasida hadlarni x ning darajalarini kamayish tartibida joylashtirsak, boshidan to`rtinchi hadning koeffisiyenti nechaga teng?

A) 120 B) 210 C) 960
D) 1536 E) 15360

  1. (2x-1)8 yoyilmasida x2 li hadning koeffisiyenti nechaga teng?

A) 28 B) 56 C) 96 D) 112 E) 224

  1. (2x2+1)8 ifoda yoyilmasidagi x li

𝑥
hadning koeffisiyenti nechaga teng?
A) 28 B) 56 C) 112 D) 224 E) 448

  1. (x2-2)9 yoyilmasidagi ozod had

𝑥
nechaga teng?
A) -5376 B) -84 C) 168
D) 84 E) 5376
69. x+y ning qaysi darajadagi yoyilmasida 4- va 12-hadlarining koeffisiyentlari bir-biriga teng bo`ladi?
A) 14 B) 15 C) 16 D) 17 E) 18
70. (1+3x)7=1+……+35ax3+…..
tenglikda a nechaga teng?
A) 135 B) 81 C) 54 D) 27 E) 9

  1. (32 + 2)9 binom yoyilmasida ratsional hadlar yig`indisi nechaga teng?

A) 1343 B) 1344 C) 1345
D) 1352 E) 1354

  1. (x+y+z)8 yoyilmasidagi x3y2z3 hadining koeffisiyenti nechaga teng?

A) 56 B) 76 C) 280
D) 560 E) 1120

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