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数学Ⅱ 二項定理③

Authored by 渡辺 崇

Mathematics

11th - 12th Grade

Used 2+ times

数学Ⅱ 二項定理③
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6 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (4xy)6\left(4x-y\right)^6  の展開式における x2y4x^2y^4  の項の係数を求めよ。

240

15

120

80

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (x22x)6\left(x^2-\frac{2}{x}\right)^6  の展開式において、 x3x^3  の項の係数を求めよ。

-20

-40

-80

-160

3.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

 (a+2b3c)7\left(a+2b-3c\right)^7  の展開式における a3b2c2a^3b^2c^2  の係数を求めよ。

(a)  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (x3+x+1)7\left(x^3+x+1\right)^7  の展開式における x8x^8  の項の係数を求めよ。

42

210

252

126

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt


 27x3+8y327x^3+8y^3  を因数分解せよ。

 (3x+2y)(9x26xy+4y2)\left(3x+2y\right)\left(9x^2-6xy+4y^2\right)  

 (3x+2y)(9x2+6xy+4y2)\left(3x+2y\right)\left(9x^2+6xy+4y^2\right)  

 (3x+2y)(9x212xy+4y2)\left(3x+2y\right)\left(9x^2-12xy+4y^2\right)  

 (3x+2y)(9x2+12xy+4y2)\left(3x+2y\right)\left(9x^2+12xy+4y^2\right)  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  (x2y)3\left(x-2y\right)^3  を展開せよ。

  x3+6x2y+12xy2+8y3x^3+6x^2y+12xy^2+8y^3  

 x36x2y12xy2+y3x^3-6x^2y-12xy^2+y^3  

 x3+6x2y12xy28y3x^3+6x^2y-12xy^2-8y^3  

 x36x2y+12xy28y3x^3-6x^2y+12xy^2-8y^3  

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