Quiz about latihan bilangan kompleks (1) 2025

Question 1

Bilangan kompleks adalah kombinasi dari bilangan ...

Accepted Answer

Real dan imajiner

Answer

Bulat dan pecahan

Answer

Imajiner dan rasional

Answer

Positif dan negatif

Question 2

Bilangan kompleks ditulis dalam bentuk a + bi, dimana a adalah bagian ... dan b adalah bagian ...

Accepted Answer

Real dan Imajiner

Answer

Rasional dan irasional

Answer

Positif dan negatif

Answer

Bulat dan pecahan

Question 3

Bilangan kompleks (3 + 4i) + (2 + 5i) adalah...

Accepted Answer

5 + 9i

Answer

6 + 8i

Answer

7 + 10i

Answer

8 + 11i

Question 4

Bilangan kompleks (5 - 2i) - (3 + 4i) adalah...

Accepted Answer

2 - 6i

Answer

2 + 6i

Answer

8 - 6i

Answer

8 + 6i

Question 5

Bilangan kompleks (2 + 3i) (4 - 5i) adalah...

Accepted Answer

23 + 2i

Answer

-7 + 2i

Answer

7 + 2i

Answer

23 - 2i

Question 6

bagian imajiner bilangan kompleks $$5+\sqrt[]{5}$$ i

Accepted Answer

$$\sqrt[]{5}$$

Answer

$$-\sqrt[]{5}$$

Answer

5

Answer

-5

Question 7

Diketahui $$Z_1=2+i$$ dan $$Z_2=3-2i$$ , maka nilai dari $$\left(Z_1\right)^2$$ adalah...

Accepted Answer

3 + 4i

Answer

5 + 4i

Answer

5 - 4i

Answer

3 - 4i

Question 8

Diketahui $$Z_1=\ 2+i$$ , $$Z_2=3-2i$$ , dan $$Z_3=1-2i$$ , maka nilai dari $$\left(Z_1+Z_3\right)-Z_2\ $$ adalah...

Accepted Answer

i

Answer

6 - i

Answer

1 - i

Answer

6 + i

Question 9

Bentuk Cartesius dari (-6, 8)

Accepted Answer

-6 + 8i

Answer

6 + 8i

Answer

8 - 6i

Answer

8 + 8i

Question 10

Bilangan kompleks (5 - 2i) - (3 + 4i) adalah...

Accepted Answer

2 - 6i

Answer

2 + 6i

Answer

8 - 6i

Answer

8 + 6i

Question 11

Bilangan kompleks (3 + 4i) + (2 + 5i) adalah...

Accepted Answer

5 + 9i

Answer

6 + 8i

Answer

7 + 10i

Answer

8 + 11i

Question 12

Bilangan kompleks (2 + 3i) x (4 - 5i) adalah...

Accepted Answer

23+2i

Answer

-23+ 2i

Answer

23- 2i

Answer

-23- 2i

Question 13

Bilangan kompleks (6 + 2i) : (2 - 1i) adalah...

Accepted Answer

2 + 2i

Answer

-2 - 2i

Answer

2 - 2i

Answer

-2 + i

Question 14

Hasil dari bilangan kompleks di samping adalah...

Accepted Answer

-5 + 12i

Answer

-5 - 12i

Answer

5 + 12i

Answer

5 - 12i

Question 15

Bilangan kompleks (3 + 4i) x (3 - 4i) adalah...

Accepted Answer

25

Answer

9 + 16i

Answer

9-16i

Answer

-9+ 16i

Question 16

Diketahui bilangan kompleks z = 2 - 3i Manakah dari pernyataan berikut yang bernilai benar?

Accepted Answer

Re(z) = 2

Answer

Im(z) = 3

Answer

Re(z) = -3

Answer

Im(z) = 2

Answer

3z = 9 - 6i

Question 17

Bentuk polar dari bilangan kompleks $$z=\sqrt[]{3}\ +\ i$$ adalah . . . .

Accepted Answer

$$z=2\left(\cos\ 30^o+i\ \sin\ 30^o\right)$$

Answer

$$z=\cos\ 30^o\ +\ i\ \sin\ 30^o$$

Answer

$$z=\sqrt[]{2}\ \left(\cos\ 30^o+i\ \sin\ 30^o\right)$$

Answer

$$z=2\left(\cos\ 60^o+i\ \sin\ 60^o\right)$$

Answer

$$z=2\ \left(\sin\ 30^o+i\ \cos\ 30^o\right)$$

Question 18

bentuk eksponen dari $$z=\sqrt[]{2}\left(\cos\ 315\degree+i\ \sin\ 315\degree\right)$$ adalah...

Accepted Answer

$$z=\sqrt[]{2}e^{i\left(315\degree\right)}$$

Answer

$$z=e^{i\left(315\degree\right)}$$

Answer

$$z=e^{\sqrt[]{2}i\left(315\degree\right)}$$

Answer

$$z=2e^{i\left(315\degree\right)}$$

Question 19

bentuk polar dari $$z=-2\ \sqrt[]{3}+2i$$ adalah...

Accepted Answer

$$z=4\left(\cos\ 150\degree+i\ \sin\ 150\degree\right)$$

Answer

$$z=4\left(\cos\ 30\degree+i\ \sin\ 30\degree\right)$$

Answer

$$z=4e^{i\left(150\degree\right)}$$

Answer

$$z=\ 4e^{i\left(30\degree\right)}$$

Question 20

Bilangan kompleks yang direpresentasikan oleh titik pada bidang Kartesius di atas adalah . . . .

Accepted Answer

-2 + 3i

Answer

2 + 3i

Answer

-2 - 3i

Answer

2 - 3i

Answer

-3 + 2i

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