克拉瑪公式2

克拉瑪公式2

11th Grade

8 Qs

quiz-placeholder

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克拉瑪公式2

克拉瑪公式2

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Medium

Created by

俊谷 葉

Used 7+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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此方程組對應「向量的線性組合」為何?

 (4,1)=x(6,5)+y(3,2)\left(4,1\right)=x\left(6,5\right)+y\left(3,2\right)  

 (4,1)=x(6,5)+y(2,3)\left(4,1\right)=x\left(6,5\right)+y\left(2,3\right)  

 (4,1)=x(6,3)+y(2,5)\left(4,1\right)=x\left(6,3\right)+y\left(2,5\right)  

 (4,1)=x(6,3)+y(5,2)\left(4,1\right)=x\left(6,3\right)+y\left(5,2\right)  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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依克拉瑪公式,此方程組的 Δy\Delta_y  為何?

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

根據克拉瑪公式,

何者代表方程組「無限多解」?

Δ=0\Delta=0

Δ0\Delta\ne0

Δ=Δx=Δy=0\Delta=\Delta_x=\Delta_y=0

Δ=0, Δx0, Δy0\Delta=0,\ \Delta_x\ne0,\ \Delta_y\ne0

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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5

10

25

30

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

某二元一次方程組有唯一解 (2,7),
 Δx+Δy=k Δ\Delta_x+\Delta_y=k\ \Delta  , k=k= 

9

14

 914\frac{9}{14}  

 27\frac{2}{7}  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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此方程組的解為下列何者?

恰有一解 ( 0, 0 )

無限多解

無解

以上皆有可能

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