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複數

Authored by Mr. Hau侯老師

Mathematics

10th - 12th Grade

Used 7+ times

複數
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10 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 (4+2i)+(3i)=\left(4+2i\right)+\left(3-i\right)=  

 7+i7+i  

 7i7-i  

 122i12-2i  

 122i212-2i^2  

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 (5i)(2+3i)=\left(5-i\right)-\left(2+3i\right)=  

 34i3-4i  

 3+2i3+2i  

 74i7-4i  

 7+2i7+2i  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (4+i)(4i)=\left(4+i\right)\left(4-i\right)=  

17

 16i16-i  

15

 99  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 42i4-2i  的虛部是

4

 4-4  

2

 2-2  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (2+3i)2\left(2+3i\right)^2  的實部是

13

 5-5  

12

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2+i32i\frac{2+i}{3-2i}  有理化,應於分子和分母同時乘以哪一個複數?

 2+i2+i  

 2i2-i  

 3+2i3+2i  

 32i3-2i  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 12i=\frac{1}{2-i}=  

 25+15i\frac{2}{5}+\frac{1}{5}i  

 2515i\frac{2}{5}-\frac{1}{5}i  

 23+13i\frac{2}{3}+\frac{1}{3}i  

 2323i\frac{2}{3}-\frac{2}{3}i  

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