Mír 3.2 Uimhreacha Coimpléascacha (Bl.5 AL)

Mír 3.2 Uimhreacha Coimpléascacha (Bl.5 AL)

5th Grade

10 Qs

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Mír 3.2 Uimhreacha Coimpléascacha (Bl.5 AL)

Mír 3.2 Uimhreacha Coimpléascacha (Bl.5 AL)

Assessment

Quiz

Mathematics

5th Grade

Practice Problem

Hard

Created by

M Ní Bhraonáin

Used 3+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scríobh i dtéarmaí i:
 (4)\sqrt{\left(-4\right)}  

-2i

2i

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scríobh i dtéarmaí i:

  36\sqrt{-36}  

6i

-6i

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Réitigh: x2+12 = 0x^2+12\ =\ 0  

 x = 23ix\ =\ 2\sqrt{3}i  

 x =23ix\ =-2\sqrt{3}i  

 x = 23ix\ =\ 2\sqrt{-3}i  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Sloinn an cheist seo a leanas san fhoirm  a + bi:a\ +\ bi:  

 (2 + 3i)+(1+5i)\left(2\ +\ 3i\right)+\left(1+5i\right)  

 2 + 15i2\ +\ 15i  

 3 + 8i3\ +\ 8i  

 3  8i3\ -\ 8i  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simpligh:

 (35i)(2+4i)\left(3-5i\right)-\left(2+4i\right) 

 620i6-20i  

 1i1-i  

 19i1-9i  

 1+9i1+9i  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Iolraigh:
 (34i)(1+5i)\left(3-4i\right)\left(1+5i\right)  

* i2=1i^2=-1  

 23+11i23+11i  

 3 + 11i 20i23\ +\ 11i\ -20i^2  

 17+11i-17+11i  

 23+19i23+19i  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Iolraigh:

 (32i)2\left(3-2i\right)^2  
* i2=1i^2=-1  

 5+12i5+12i  

 1312i13-12i  

 13+12i13+12i  

 512i5-12i  

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