Quiz Complex Number

​Quiz ចំនួនកុំផ្លិចទម្រង់ពីជគណិត

By ទូច គីមហៃ

Multiple Choice

បម្លែងចំនួន $$A=\sqrt[]{-12}$$ ជាចំនួននិមិត្ត

• $$A=-4i$$

• $$A=2\ \ \sqrt[]{3}i$$

• $$A=-2\ \ \sqrt[]{3}i$$

• $$A=3\ \sqrt[]{2}i$$

Multiple Choice

បម្លែងចំនួន $$A=\sqrt[]{-100}$$ ជាចំនួននិមិត្ត

• $$10$$

• $$-10$$

• $$10i$$

• $$-10i$$

Multiple Choice

ផលបូកចំនួនកុំផ្លិច $$Z=(3+2i)+(4-5i)$$

• $$7+7i$$

• $$1-3i$$

• $$1-7i$$

• $$7-3i$$

Multiple Choice

ផលដកចំនួនកុំផ្លិច $$Z=(4-2i)-(3+6i)$$

• $$7-4i$$

• $$1+4i$$

• $$1-8i$$

• $$7-8i$$

Multiple Choice

តម្លៃនៃ $$i^2$$ ស្មើនឹង

• $$-1$$

• $$\sqrt{-}1$$

• $$1$$

• $$-\sqrt{1}$$

Multiple Choice

√-36

• 6
• -6
• -6i
• 6i

Multiple Choice

What letter represents an imaginary number?

• a

• i

• j

• x

Multiple Choice

Find the sum.
(5-2i) + (-7+8i)

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Multiple Choice

3i + 2i

• 5i
• 5i²
• 6i
• -5

Multiple Choice

(2i)(3i)

• 5i
• -5
• 6i
• -6

Multiple Choice

-6i+3i

• 3i
• -3i
• -2i
• -3i²

Multiple Choice

How do you write a complex number?

• a-bi

• a+bi

• ai+b

• ai-b

Multiple Choice

3i+5i+2i+10

• 10

• 10i+10

• 10i

• 100i

Multiple Choice

(3i)(5i) (Hint: $$i^2$$  =-1)

• 15

• -15

• 15i

• -15i 

Multiple Choice

$$i=\sqrt[]{-1}$$  

• True

• False