កុំផ្លិច

កុំផ្លិច

10th - 12th Grade

15 Qs

quiz-placeholder

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កុំផ្លិច

កុំផ្លិច

Assessment

Quiz

Mathematics

10th - 12th Grade

Practice Problem

Medium

Created by

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

គណនា 9\sqrt{-9}  

-3

3

-3i

3i

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

គណនា  25-\sqrt{-25}  

5

-5

5i

-5i

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

សរសេរចំនួន   595-\sqrt{-9}  ជាចំនួនកុំផ្លិចទម្រង់ពីជគណិត។

 53i5-3i  

 5+3i5+3i  

 5i35i-3  

 53i-5-3i  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 ចូរគណនា i10i^{10}  

 1-1  

 i-i  

 ii  

1

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ចូរគណនា      i20+i30+i40+i50\ \ i^{20}+i^{30}+i^{40}+i^{50}  

 11  

 1-1  

 ii  

 00  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

មួយណាជាទម្រង់ត្រីកោណមាត្រ (ទម្រង់ប៉ូលែរ)

z=r(cosα+sinα)z=r\left(\cos\alpha+\sin\alpha\right)

z=r(cosα+isinα)z=r\left(\cos\alpha+i\sin\alpha\right)

z=r(sinα+icosα)z=r\left(\sin\alpha+i\cos\alpha\right)

z=cosα+isinαz=\cos\alpha+i\sin\alpha

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

រកម៉ូលឌុលនៃចំនួនកុំផ្លិច z=2+2iz=2+2i  

 22  

 2\sqrt{2}  

 44  

 222\sqrt{2}  

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